Home / 129,512,089.20-194,240,140.20-56,728,729.20

Finding the Fourth Proportional to 129,512,089.20, 194,240,140.20 and 56,728,729.20

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Solution

The fourth proportional to 129,512,089.20, 194,240,140.20 and 56,728,729.20 is: 85,080,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,512,089.20 : 194,240,140.20 = 56,728,729.20 : x
  2. Step 2: Convert to fraction form
    129,512,089.20/194,240,140.20 = 56,728,729.20/x
  3. Step 3: Cross multiply
    129,512,089.20x = 194,240,140.20 × 56,728,729.20
  4. Step 4: Simplify right side
    129,512,089.20x = 11,018,996,313,175,834
  5. Step 5: Solve for x
    x = 11,018,996,313,175,834/129,512,089.20
  6. Step 6: Final answer
    x = 85,080,832.08

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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.