Home / 128,007,165.87-176,650,354.91-69,269,825.68

Finding the Fourth Proportional to 128,007,165.87, 176,650,354.91 and 69,269,825.68

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Solution

The fourth proportional to 128,007,165.87, 176,650,354.91 and 69,269,825.68 is: 95,592,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,007,165.87 : 176,650,354.91 = 69,269,825.68 : x
  2. Step 2: Convert to fraction form
    128,007,165.87/176,650,354.91 = 69,269,825.68/x
  3. Step 3: Cross multiply
    128,007,165.87x = 176,650,354.91 × 69,269,825.68
  4. Step 4: Simplify right side
    128,007,165.87x = 12,236,539,290,137,856
  5. Step 5: Solve for x
    x = 12,236,539,290,137,856/128,007,165.87
  6. Step 6: Final answer
    x = 95,592,611.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.