Home / 128,125,091.90-176,810,441.51-69,387,279.74

Finding the Fourth Proportional to 128,125,091.90, 176,810,441.51 and 69,387,279.74

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Solution

The fourth proportional to 128,125,091.90, 176,810,441.51 and 69,387,279.74 is: 95,753,262.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,125,091.90 : 176,810,441.51 = 69,387,279.74 : x
  2. Step 2: Convert to fraction form
    128,125,091.90/176,810,441.51 = 69,387,279.74/x
  3. Step 3: Cross multiply
    128,125,091.90x = 176,810,441.51 × 69,387,279.74
  4. Step 4: Simplify right side
    128,125,091.90x = 12,268,395,566,007,276
  5. Step 5: Solve for x
    x = 12,268,395,566,007,276/128,125,091.90
  6. Step 6: Final answer
    x = 95,753,262.57

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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.