Home / 20,678,752.17-31,018,167.14-8,534,895.21

Finding the Fourth Proportional to 20,678,752.17, 31,018,167.14 and 8,534,895.21

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Solution

The fourth proportional to 20,678,752.17, 31,018,167.14 and 8,534,895.21 is: 12,802,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,752.17 : 31,018,167.14 = 8,534,895.21 : x
  2. Step 2: Convert to fraction form
    20,678,752.17/31,018,167.14 = 8,534,895.21/x
  3. Step 3: Cross multiply
    20,678,752.17x = 31,018,167.14 × 8,534,895.21
  4. Step 4: Simplify right side
    20,678,752.17x = 264,736,806,103,490.97
  5. Step 5: Solve for x
    x = 264,736,806,103,490.97/20,678,752.17
  6. Step 6: Final answer
    x = 12,802,358.86

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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.