Home / 128,125,087.40-176,810,435.30-69,387,275.24

Finding the Fourth Proportional to 128,125,087.40, 176,810,435.30 and 69,387,275.24

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Solution

The fourth proportional to 128,125,087.40, 176,810,435.30 and 69,387,275.24 is: 95,753,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,125,087.40 : 176,810,435.30 = 69,387,275.24 : x
  2. Step 2: Convert to fraction form
    128,125,087.40/176,810,435.30 = 69,387,275.24/x
  3. Step 3: Cross multiply
    128,125,087.40x = 176,810,435.30 × 69,387,275.24
  4. Step 4: Simplify right side
    128,125,087.40x = 12,268,394,339,465,312
  5. Step 5: Solve for x
    x = 12,268,394,339,465,312/128,125,087.40
  6. Step 6: Final answer
    x = 95,753,256.36

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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.