Home / 138,759,375.83-208,151,906.90-45,386,877.48

Finding the Fourth Proportional to 138,759,375.83, 208,151,906.90 and 45,386,877.48

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Solution

The fourth proportional to 138,759,375.83, 208,151,906.90 and 45,386,877.48 is: 68,084,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,375.83 : 208,151,906.90 = 45,386,877.48 : x
  2. Step 2: Convert to fraction form
    138,759,375.83/208,151,906.90 = 45,386,877.48/x
  3. Step 3: Cross multiply
    138,759,375.83x = 208,151,906.90 × 45,386,877.48
  4. Step 4: Simplify right side
    138,759,375.83x = 9,447,365,095,471,732
  5. Step 5: Solve for x
    x = 9,447,365,095,471,732/138,759,375.83
  6. Step 6: Final answer
    x = 68,084,517.10

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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.