Home / 137,498,981.76-189,744,807.96-75,619,342.80

Finding the Fourth Proportional to 137,498,981.76, 189,744,807.96 and 75,619,342.80

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Solution

The fourth proportional to 137,498,981.76, 189,744,807.96 and 75,619,342.80 is: 104,352,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,498,981.76 : 189,744,807.96 = 75,619,342.80 : x
  2. Step 2: Convert to fraction form
    137,498,981.76/189,744,807.96 = 75,619,342.80/x
  3. Step 3: Cross multiply
    137,498,981.76x = 189,744,807.96 × 75,619,342.80
  4. Step 4: Simplify right side
    137,498,981.76x = 14,348,377,677,647,408
  5. Step 5: Solve for x
    x = 14,348,377,677,647,408/137,498,981.76
  6. Step 6: Final answer
    x = 104,352,610.43

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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.