Home / 86,028,151.20-129,024,293.40-31,466,437.80

Finding the Fourth Proportional to 86,028,151.20, 129,024,293.40 and 31,466,437.80

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Solution

The fourth proportional to 86,028,151.20, 129,024,293.40 and 31,466,437.80 is: 47,193,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,028,151.20 : 129,024,293.40 = 31,466,437.80 : x
  2. Step 2: Convert to fraction form
    86,028,151.20/129,024,293.40 = 31,466,437.80/x
  3. Step 3: Cross multiply
    86,028,151.20x = 129,024,293.40 × 31,466,437.80
  4. Step 4: Simplify right side
    86,028,151.20x = 4,059,934,902,960,051
  5. Step 5: Solve for x
    x = 4,059,934,902,960,051/86,028,151.20
  6. Step 6: Final answer
    x = 47,193,097.22

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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.