Home / 128,002,575.04-176,644,021.68-69,265,240.72

Finding the Fourth Proportional to 128,002,575.04, 176,644,021.68 and 69,265,240.72

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Solution

The fourth proportional to 128,002,575.04, 176,644,021.68 and 69,265,240.72 is: 95,586,285.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002,575.04 : 176,644,021.68 = 69,265,240.72 : x
  2. Step 2: Convert to fraction form
    128,002,575.04/176,644,021.68 = 69,265,240.72/x
  3. Step 3: Cross multiply
    128,002,575.04x = 176,644,021.68 × 69,265,240.72
  4. Step 4: Simplify right side
    128,002,575.04x = 12,235,290,683,414,100
  5. Step 5: Solve for x
    x = 12,235,290,683,414,100/128,002,575.04
  6. Step 6: Final answer
    x = 95,586,285.51

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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.