Home / 21,785,995.20-32,616,007.20-21,156,139.20

Finding the Fourth Proportional to 21,785,995.20, 32,616,007.20 and 21,156,139.20

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Solution

The fourth proportional to 21,785,995.20, 32,616,007.20 and 21,156,139.20 is: 31,673,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785,995.20 : 32,616,007.20 = 21,156,139.20 : x
  2. Step 2: Convert to fraction form
    21,785,995.20/32,616,007.20 = 21,156,139.20/x
  3. Step 3: Cross multiply
    21,785,995.20x = 32,616,007.20 × 21,156,139.20
  4. Step 4: Simplify right side
    21,785,995.20x = 690,028,788,471,402.25
  5. Step 5: Solve for x
    x = 690,028,788,471,402.25/21,785,995.20
  6. Step 6: Final answer
    x = 31,673,044.18

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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.