Home / 137,838,276.10-206,757,414.15-86,819,940.10

Finding the Fourth Proportional to 137,838,276.10, 206,757,414.15 and 86,819,940.10

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Solution

The fourth proportional to 137,838,276.10, 206,757,414.15 and 86,819,940.10 is: 130,229,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,838,276.10 : 206,757,414.15 = 86,819,940.10 : x
  2. Step 2: Convert to fraction form
    137,838,276.10/206,757,414.15 = 86,819,940.10/x
  3. Step 3: Cross multiply
    137,838,276.10x = 206,757,414.15 × 86,819,940.10
  4. Step 4: Simplify right side
    137,838,276.10x = 17,950,666,311,733,892
  5. Step 5: Solve for x
    x = 17,950,666,311,733,892/137,838,276.10
  6. Step 6: Final answer
    x = 130,229,910.15

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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.