Home / 138,419,000.10-207,628,500.15-136,266,664.05

Finding the Fourth Proportional to 138,419,000.10, 207,628,500.15 and 136,266,664.05

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Solution

The fourth proportional to 138,419,000.10, 207,628,500.15 and 136,266,664.05 is: 204,399,996.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,419,000.10 : 207,628,500.15 = 136,266,664.05 : x
  2. Step 2: Convert to fraction form
    138,419,000.10/207,628,500.15 = 136,266,664.05/x
  3. Step 3: Cross multiply
    138,419,000.10x = 207,628,500.15 × 136,266,664.05
  4. Step 4: Simplify right side
    138,419,000.10x = 28,292,843,077,145,428
  5. Step 5: Solve for x
    x = 28,292,843,077,145,428/138,419,000.10
  6. Step 6: Final answer
    x = 204,399,996.08

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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.