Home / 21,190,337.10-31,785,505.65-19,755,446.40

Finding the Fourth Proportional to 21,190,337.10, 31,785,505.65 and 19,755,446.40

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Solution

The fourth proportional to 21,190,337.10, 31,785,505.65 and 19,755,446.40 is: 29,633,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190,337.10 : 31,785,505.65 = 19,755,446.40 : x
  2. Step 2: Convert to fraction form
    21,190,337.10/31,785,505.65 = 19,755,446.40/x
  3. Step 3: Cross multiply
    21,190,337.10x = 31,785,505.65 × 19,755,446.40
  4. Step 4: Simplify right side
    21,190,337.10x = 627,936,853,165,472.12
  5. Step 5: Solve for x
    x = 627,936,853,165,472.12/21,190,337.10
  6. Step 6: Final answer
    x = 29,633,169.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.