Home / 1,140,317,381.86-1,573,637,986.83-618,796,613.86

Finding the Fourth Proportional to 1,140,317,381.86, 1,573,637,986.83 and 618,796,613.86

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Solution

The fourth proportional to 1,140,317,381.86, 1,573,637,986.83 and 618,796,613.86 is: 853,939,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,317,381.86 : 1,573,637,986.83 = 618,796,613.86 : x
  2. Step 2: Convert to fraction form
    1,140,317,381.86/1,573,637,986.83 = 618,796,613.86/x
  3. Step 3: Cross multiply
    1,140,317,381.86x = 1,573,637,986.83 × 618,796,613.86
  4. Step 4: Simplify right side
    1,140,317,381.86x = 973,761,857,690,288,640
  5. Step 5: Solve for x
    x = 973,761,857,690,288,640/1,140,317,381.86
  6. Step 6: Final answer
    x = 853,939,327.05

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Double scale
Find fourth proportional to 1,140,317,382.86, 1,573,637,988.21 and 618,796,614.86
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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.