Home / 137,318,320.88-189,499,359.35-75,442,645.25

Finding the Fourth Proportional to 137,318,320.88, 189,499,359.35 and 75,442,645.25

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Solution

The fourth proportional to 137,318,320.88, 189,499,359.35 and 75,442,645.25 is: 104,110,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,318,320.88 : 189,499,359.35 = 75,442,645.25 : x
  2. Step 2: Convert to fraction form
    137,318,320.88/189,499,359.35 = 75,442,645.25/x
  3. Step 3: Cross multiply
    137,318,320.88x = 189,499,359.35 × 75,442,645.25
  4. Step 4: Simplify right side
    137,318,320.88x = 14,296,332,942,544,320
  5. Step 5: Solve for x
    x = 14,296,332,942,544,320/137,318,320.88
  6. Step 6: Final answer
    x = 104,110,892.49

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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.