Home / 137,226,675.47-189,375,520.52-75,346,472.75

Finding the Fourth Proportional to 137,226,675.47, 189,375,520.52 and 75,346,472.75

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Solution

The fourth proportional to 137,226,675.47, 189,375,520.52 and 75,346,472.75 is: 103,979,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,226,675.47 : 189,375,520.52 = 75,346,472.75 : x
  2. Step 2: Convert to fraction form
    137,226,675.47/189,375,520.52 = 75,346,472.75/x
  3. Step 3: Cross multiply
    137,226,675.47x = 189,375,520.52 × 75,346,472.75
  4. Step 4: Simplify right side
    137,226,675.47x = 14,268,777,495,618,736
  5. Step 5: Solve for x
    x = 14,268,777,495,618,736/137,226,675.47
  6. Step 6: Final answer
    x = 103,979,619.47

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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.