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Finding the Fourth Proportional to 86,548,044.92, 129,615,978.96 and 50,079,579.32

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Solution

The fourth proportional to 86,548,044.92, 129,615,978.96 and 50,079,579.32 is: 75,000,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,548,044.92 : 129,615,978.96 = 50,079,579.32 : x
  2. Step 2: Convert to fraction form
    86,548,044.92/129,615,978.96 = 50,079,579.32/x
  3. Step 3: Cross multiply
    86,548,044.92x = 129,615,978.96 × 50,079,579.32
  4. Step 4: Simplify right side
    86,548,044.92x = 6,491,113,699,466,771
  5. Step 5: Solve for x
    x = 6,491,113,699,466,771/86,548,044.92
  6. Step 6: Final answer
    x = 75,000,119.36

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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.