Home / 129,470,143.80-194,205,215.70-52,751,350.20

Finding the Fourth Proportional to 129,470,143.80, 194,205,215.70 and 52,751,350.20

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Solution

The fourth proportional to 129,470,143.80, 194,205,215.70 and 52,751,350.20 is: 79,127,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,470,143.80 : 194,205,215.70 = 52,751,350.20 : x
  2. Step 2: Convert to fraction form
    129,470,143.80/194,205,215.70 = 52,751,350.20/x
  3. Step 3: Cross multiply
    129,470,143.80x = 194,205,215.70 × 52,751,350.20
  4. Step 4: Simplify right side
    129,470,143.80x = 10,244,587,344,057,238
  5. Step 5: Solve for x
    x = 10,244,587,344,057,238/129,470,143.80
  6. Step 6: Final answer
    x = 79,127,025.30

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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.