Home / 128,121,765.20-192,182,647.80-59,034,435.20

Finding the Fourth Proportional to 128,121,765.20, 192,182,647.80 and 59,034,435.20

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Solution

The fourth proportional to 128,121,765.20, 192,182,647.80 and 59,034,435.20 is: 88,551,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,121,765.20 : 192,182,647.80 = 59,034,435.20 : x
  2. Step 2: Convert to fraction form
    128,121,765.20/192,182,647.80 = 59,034,435.20/x
  3. Step 3: Cross multiply
    128,121,765.20x = 192,182,647.80 × 59,034,435.20
  4. Step 4: Simplify right side
    128,121,765.20x = 11,345,394,068,113,524
  5. Step 5: Solve for x
    x = 11,345,394,068,113,524/128,121,765.20
  6. Step 6: Final answer
    x = 88,551,652.80

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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.