Home / 129,465,689.20-194,198,533.80-123,493,721.20

Finding the Fourth Proportional to 129,465,689.20, 194,198,533.80 and 123,493,721.20

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Solution

The fourth proportional to 129,465,689.20, 194,198,533.80 and 123,493,721.20 is: 185,240,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,465,689.20 : 194,198,533.80 = 123,493,721.20 : x
  2. Step 2: Convert to fraction form
    129,465,689.20/194,198,533.80 = 123,493,721.20/x
  3. Step 3: Cross multiply
    129,465,689.20x = 194,198,533.80 × 123,493,721.20
  4. Step 4: Simplify right side
    129,465,689.20x = 23,982,299,590,545,980
  5. Step 5: Solve for x
    x = 23,982,299,590,545,980/129,465,689.20
  6. Step 6: Final answer
    x = 185,240,581.80

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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.