Home / 86,231,179.76-129,270,260.28-31,631,206.16

Finding the Fourth Proportional to 86,231,179.76, 129,270,260.28 and 31,631,206.16

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Solution

The fourth proportional to 86,231,179.76, 129,270,260.28 and 31,631,206.16 is: 47,418,744.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,231,179.76 : 129,270,260.28 = 31,631,206.16 : x
  2. Step 2: Convert to fraction form
    86,231,179.76/129,270,260.28 = 31,631,206.16/x
  3. Step 3: Cross multiply
    86,231,179.76x = 129,270,260.28 × 31,631,206.16
  4. Step 4: Simplify right side
    86,231,179.76x = 4,088,974,253,273,539.50
  5. Step 5: Solve for x
    x = 4,088,974,253,273,539.50/86,231,179.76
  6. Step 6: Final answer
    x = 47,418,744.18

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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.