Home / 128,002,563.76-176,644,006.19-69,265,229.35

Finding the Fourth Proportional to 128,002,563.76, 176,644,006.19 and 69,265,229.35

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Solution

The fourth proportional to 128,002,563.76, 176,644,006.19 and 69,265,229.35 is: 95,586,269.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,002,563.76 : 176,644,006.19 = 69,265,229.35 : x
  2. Step 2: Convert to fraction form
    128,002,563.76/176,644,006.19 = 69,265,229.35/x
  3. Step 3: Cross multiply
    128,002,563.76x = 176,644,006.19 × 69,265,229.35
  4. Step 4: Simplify right side
    128,002,563.76x = 12,235,287,602,053,168
  5. Step 5: Solve for x
    x = 12,235,287,602,053,168/128,002,563.76
  6. Step 6: Final answer
    x = 95,586,269.86

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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.