Home / 1,213,717,613.85-1,674,930,307.65-656,800,661.10

Finding the Fourth Proportional to 1,213,717,613.85, 1,674,930,307.65 and 656,800,661.10

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Solution

The fourth proportional to 1,213,717,613.85, 1,674,930,307.65 and 656,800,661.10 is: 906,384,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,717,613.85 : 1,674,930,307.65 = 656,800,661.10 : x
  2. Step 2: Convert to fraction form
    1,213,717,613.85/1,674,930,307.65 = 656,800,661.10/x
  3. Step 3: Cross multiply
    1,213,717,613.85x = 1,674,930,307.65 × 656,800,661.10
  4. Step 4: Simplify right side
    1,213,717,613.85x = 1,100,095,333,360,946,432
  5. Step 5: Solve for x
    x = 1,100,095,333,360,946,432/1,213,717,613.85
  6. Step 6: Final answer
    x = 906,384,912.61

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Half scale
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Double scale
Find fourth proportional to 1,213,717,614.85, 1,674,930,309.03 and 656,800,662.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.