Home / 129,820,081.30-194,730,121.95-38,943,670.30

Finding the Fourth Proportional to 129,820,081.30, 194,730,121.95 and 38,943,670.30

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Solution

The fourth proportional to 129,820,081.30, 194,730,121.95 and 38,943,670.30 is: 58,415,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,820,081.30 : 194,730,121.95 = 38,943,670.30 : x
  2. Step 2: Convert to fraction form
    129,820,081.30/194,730,121.95 = 38,943,670.30/x
  3. Step 3: Cross multiply
    129,820,081.30x = 194,730,121.95 × 38,943,670.30
  4. Step 4: Simplify right side
    129,820,081.30x = 7,583,505,666,699,592
  5. Step 5: Solve for x
    x = 7,583,505,666,699,592/129,820,081.30
  6. Step 6: Final answer
    x = 58,415,505.45

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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.