Home / 716,086,107,993.14-988,193,801,948.04-390,925,399,791.86

Finding the Fourth Proportional to 716,086,107,993.14, 988,193,801,948.04 and 390,925,399,791.86

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Solution

The fourth proportional to 716,086,107,993.14, 988,193,801,948.04 and 390,925,399,791.86 is: 539,474,307,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,086,107,993.14 : 988,193,801,948.04 = 390,925,399,791.86 : x
  2. Step 2: Convert to fraction form
    716,086,107,993.14/988,193,801,948.04 = 390,925,399,791.86/x
  3. Step 3: Cross multiply
    716,086,107,993.14x = 988,193,801,948.04 × 390,925,399,791.86
  4. Step 4: Simplify right side
    716,086,107,993.14x = 386,310,057,098,375,679,967,232
  5. Step 5: Solve for x
    x = 386,310,057,098,375,679,967,232/716,086,107,993.14
  6. Step 6: Final answer
    x = 539,474,307,330.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.