Home / 86,152,387.20-129,228,580.80-73,163,356.80

Finding the Fourth Proportional to 86,152,387.20, 129,228,580.80 and 73,163,356.80

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Solution

The fourth proportional to 86,152,387.20, 129,228,580.80 and 73,163,356.80 is: 109,745,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,152,387.20 : 129,228,580.80 = 73,163,356.80 : x
  2. Step 2: Convert to fraction form
    86,152,387.20/129,228,580.80 = 73,163,356.80/x
  3. Step 3: Cross multiply
    86,152,387.20x = 129,228,580.80 × 73,163,356.80
  4. Step 4: Simplify right side
    86,152,387.20x = 9,454,796,765,828,028
  5. Step 5: Solve for x
    x = 9,454,796,765,828,028/86,152,387.20
  6. Step 6: Final answer
    x = 109,745,035.20

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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.