Home / 129,311,938.80-193,995,901.80-38,444,713.20

Finding the Fourth Proportional to 129,311,938.80, 193,995,901.80 and 38,444,713.20

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Solution

The fourth proportional to 129,311,938.80, 193,995,901.80 and 38,444,713.20 is: 57,675,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,311,938.80 : 193,995,901.80 = 38,444,713.20 : x
  2. Step 2: Convert to fraction form
    129,311,938.80/193,995,901.80 = 38,444,713.20/x
  3. Step 3: Cross multiply
    129,311,938.80x = 193,995,901.80 × 38,444,713.20
  4. Step 4: Simplify right side
    129,311,938.80x = 7,458,116,806,676,365
  5. Step 5: Solve for x
    x = 7,458,116,806,676,365/129,311,938.80
  6. Step 6: Final answer
    x = 57,675,392.36

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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.