Home / 1,210,180,443.34-1,670,004,920.42-674,304,420.58

Finding the Fourth Proportional to 1,210,180,443.34, 1,670,004,920.42 and 674,304,420.58

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Solution

The fourth proportional to 1,210,180,443.34, 1,670,004,920.42 and 674,304,420.58 is: 930,515,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,180,443.34 : 1,670,004,920.42 = 674,304,420.58 : x
  2. Step 2: Convert to fraction form
    1,210,180,443.34/1,670,004,920.42 = 674,304,420.58/x
  3. Step 3: Cross multiply
    1,210,180,443.34x = 1,670,004,920.42 × 674,304,420.58
  4. Step 4: Simplify right side
    1,210,180,443.34x = 1,126,091,700,229,557,248
  5. Step 5: Solve for x
    x = 1,126,091,700,229,557,248/1,210,180,443.34
  6. Step 6: Final answer
    x = 930,515,532.97

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Double scale
Find fourth proportional to 1,210,180,444.34, 1,670,004,921.80 and 674,304,421.58
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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.