Home / 86,239,626.30-129,422,425.05-60,730,458.30

Finding the Fourth Proportional to 86,239,626.30, 129,422,425.05 and 60,730,458.30

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Solution

The fourth proportional to 86,239,626.30, 129,422,425.05 and 60,730,458.30 is: 91,140,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,239,626.30 : 129,422,425.05 = 60,730,458.30 : x
  2. Step 2: Convert to fraction form
    86,239,626.30/129,422,425.05 = 60,730,458.30/x
  3. Step 3: Cross multiply
    86,239,626.30x = 129,422,425.05 × 60,730,458.30
  4. Step 4: Simplify right side
    86,239,626.30x = 7,859,883,187,583,900
  5. Step 5: Solve for x
    x = 7,859,883,187,583,900/86,239,626.30
  6. Step 6: Final answer
    x = 91,140,042.28

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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.