Home / 20,736,781.40-31,101,024.90-9,954,061.40

Finding the Fourth Proportional to 20,736,781.40, 31,101,024.90 and 9,954,061.40

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Solution

The fourth proportional to 20,736,781.40, 31,101,024.90 and 9,954,061.40 is: 14,929,101.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,781.40 : 31,101,024.90 = 9,954,061.40 : x
  2. Step 2: Convert to fraction form
    20,736,781.40/31,101,024.90 = 9,954,061.40/x
  3. Step 3: Cross multiply
    20,736,781.40x = 31,101,024.90 × 9,954,061.40
  4. Step 4: Simplify right side
    20,736,781.40x = 309,581,511,457,528.88
  5. Step 5: Solve for x
    x = 309,581,511,457,528.88/20,736,781.40
  6. Step 6: Final answer
    x = 14,929,101.36

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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.