Home / 86,581,402.10-129,872,103.15-53,702,918.90

Finding the Fourth Proportional to 86,581,402.10, 129,872,103.15 and 53,702,918.90

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Solution

The fourth proportional to 86,581,402.10, 129,872,103.15 and 53,702,918.90 is: 80,554,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581,402.10 : 129,872,103.15 = 53,702,918.90 : x
  2. Step 2: Convert to fraction form
    86,581,402.10/129,872,103.15 = 53,702,918.90/x
  3. Step 3: Cross multiply
    86,581,402.10x = 129,872,103.15 × 53,702,918.90
  4. Step 4: Simplify right side
    86,581,402.10x = 6,974,511,022,836,885
  5. Step 5: Solve for x
    x = 6,974,511,022,836,885/86,581,402.10
  6. Step 6: Final answer
    x = 80,554,378.35

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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.