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Finding the Fourth Proportional to 60,444,978.70, 90,667,468.05 and 55,154,188.30

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Solution

The fourth proportional to 60,444,978.70, 90,667,468.05 and 55,154,188.30 is: 82,731,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,444,978.70 : 90,667,468.05 = 55,154,188.30 : x
  2. Step 2: Convert to fraction form
    60,444,978.70/90,667,468.05 = 55,154,188.30/x
  3. Step 3: Cross multiply
    60,444,978.70x = 90,667,468.05 × 55,154,188.30
  4. Step 4: Simplify right side
    60,444,978.70x = 5,000,690,605,513,933
  5. Step 5: Solve for x
    x = 5,000,690,605,513,933/60,444,978.70
  6. Step 6: Final answer
    x = 82,731,282.45

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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.