Home / 128,032,365.52-192,056,800.76-45,023,934.88

Finding the Fourth Proportional to 128,032,365.52, 192,056,800.76 and 45,023,934.88

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Solution

The fourth proportional to 128,032,365.52, 192,056,800.76 and 45,023,934.88 is: 67,538,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,032,365.52 : 192,056,800.76 = 45,023,934.88 : x
  2. Step 2: Convert to fraction form
    128,032,365.52/192,056,800.76 = 45,023,934.88/x
  3. Step 3: Cross multiply
    128,032,365.52x = 192,056,800.76 × 45,023,934.88
  4. Step 4: Simplify right side
    128,032,365.52x = 8,647,152,890,679,375
  5. Step 5: Solve for x
    x = 8,647,152,890,679,375/128,032,365.52
  6. Step 6: Final answer
    x = 67,538,804.39

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1.5x scale

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.