Home / 129,372,145.60-194,061,328.80-38,498,699.20

Finding the Fourth Proportional to 129,372,145.60, 194,061,328.80 and 38,498,699.20

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Solution

The fourth proportional to 129,372,145.60, 194,061,328.80 and 38,498,699.20 is: 57,748,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,372,145.60 : 194,061,328.80 = 38,498,699.20 : x
  2. Step 2: Convert to fraction form
    129,372,145.60/194,061,328.80 = 38,498,699.20/x
  3. Step 3: Cross multiply
    129,372,145.60x = 194,061,328.80 × 38,498,699.20
  4. Step 4: Simplify right side
    129,372,145.60x = 7,471,108,723,823,498
  5. Step 5: Solve for x
    x = 7,471,108,723,823,498/129,372,145.60
  6. Step 6: Final answer
    x = 57,748,974.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.