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Finding the Fourth Proportional to 499,373,010.60, 748,873,712.70 and 171,756,565.80

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Solution

The fourth proportional to 499,373,010.60, 748,873,712.70 and 171,756,565.80 is: 257,570,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,373,010.60 : 748,873,712.70 = 171,756,565.80 : x
  2. Step 2: Convert to fraction form
    499,373,010.60/748,873,712.70 = 171,756,565.80/x
  3. Step 3: Cross multiply
    499,373,010.60x = 748,873,712.70 × 171,756,565.80
  4. Step 4: Simplify right side
    499,373,010.60x = 128,623,977,111,247,856
  5. Step 5: Solve for x
    x = 128,623,977,111,247,856/499,373,010.60
  6. Step 6: Final answer
    x = 257,570,942.72

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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.