Home / 129,542,570.40-194,335,628.40-38,675,344.80

Finding the Fourth Proportional to 129,542,570.40, 194,335,628.40 and 38,675,344.80

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Solution

The fourth proportional to 129,542,570.40, 194,335,628.40 and 38,675,344.80 is: 58,019,517.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,542,570.40 : 194,335,628.40 = 38,675,344.80 : x
  2. Step 2: Convert to fraction form
    129,542,570.40/194,335,628.40 = 38,675,344.80/x
  3. Step 3: Cross multiply
    129,542,570.40x = 194,335,628.40 × 38,675,344.80
  4. Step 4: Simplify right side
    129,542,570.40x = 7,515,997,435,294,672
  5. Step 5: Solve for x
    x = 7,515,997,435,294,672/129,542,570.40
  6. Step 6: Final answer
    x = 58,019,517.54

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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.