Home / 711,139,092,412.30-981,372,673,832.84-385,978,451,262

Finding the Fourth Proportional to 711,139,092,412.30, 981,372,673,832.84 and 385,978,451,262

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Solution

The fourth proportional to 711,139,092,412.30, 981,372,673,832.84 and 385,978,451,262 is: 532,650,656,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,139,092,412.30 : 981,372,673,832.84 = 385,978,451,262 : x
  2. Step 2: Convert to fraction form
    711,139,092,412.30/981,372,673,832.84 = 385,978,451,262/x
  3. Step 3: Cross multiply
    711,139,092,412.30x = 981,372,673,832.84 × 385,978,451,262
  4. Step 4: Simplify right side
    711,139,092,412.30x = 378,788,704,756,847,427,452,928
  5. Step 5: Solve for x
    x = 378,788,704,756,847,427,452,928/711,139,092,412.30
  6. Step 6: Final answer
    x = 532,650,656,950.86

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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.