Home / 126,376,375.40-189,564,563.10-103,418,124.20

Finding the Fourth Proportional to 126,376,375.40, 189,564,563.10 and 103,418,124.20

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Solution

The fourth proportional to 126,376,375.40, 189,564,563.10 and 103,418,124.20 is: 155,127,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,376,375.40 : 189,564,563.10 = 103,418,124.20 : x
  2. Step 2: Convert to fraction form
    126,376,375.40/189,564,563.10 = 103,418,124.20/x
  3. Step 3: Cross multiply
    126,376,375.40x = 189,564,563.10 × 103,418,124.20
  4. Step 4: Simplify right side
    126,376,375.40x = 19,604,411,530,594,536
  5. Step 5: Solve for x
    x = 19,604,411,530,594,536/126,376,375.40
  6. Step 6: Final answer
    x = 155,127,186.30

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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.