Home / 128,083,164.20-176,752,656.60-69,345,359.72

Finding the Fourth Proportional to 128,083,164.20, 176,752,656.60 and 69,345,359.72

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Solution

The fourth proportional to 128,083,164.20, 176,752,656.60 and 69,345,359.72 is: 95,695,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,083,164.20 : 176,752,656.60 = 69,345,359.72 : x
  2. Step 2: Convert to fraction form
    128,083,164.20/176,752,656.60 = 69,345,359.72/x
  3. Step 3: Cross multiply
    128,083,164.20x = 176,752,656.60 × 69,345,359.72
  4. Step 4: Simplify right side
    128,083,164.20x = 12,256,976,553,392,632
  5. Step 5: Solve for x
    x = 12,256,976,553,392,632/128,083,164.20
  6. Step 6: Final answer
    x = 95,695,454.04

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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.