Home / 129,820,087.80-194,730,131.70-38,943,676.80

Finding the Fourth Proportional to 129,820,087.80, 194,730,131.70 and 38,943,676.80

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Solution

The fourth proportional to 129,820,087.80, 194,730,131.70 and 38,943,676.80 is: 58,415,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,820,087.80 : 194,730,131.70 = 38,943,676.80 : x
  2. Step 2: Convert to fraction form
    129,820,087.80/194,730,131.70 = 38,943,676.80/x
  3. Step 3: Cross multiply
    129,820,087.80x = 194,730,131.70 × 38,943,676.80
  4. Step 4: Simplify right side
    129,820,087.80x = 7,583,507,312,146,234
  5. Step 5: Solve for x
    x = 7,583,507,312,146,234/129,820,087.80
  6. Step 6: Final answer
    x = 58,415,515.20

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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.