Home / 711,139,092,424.56-981,372,673,849.64-385,978,451,274.22

Finding the Fourth Proportional to 711,139,092,424.56, 981,372,673,849.64 and 385,978,451,274.22

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Solution

The fourth proportional to 711,139,092,424.56, 981,372,673,849.64 and 385,978,451,274.22 is: 532,650,656,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,139,092,424.56 : 981,372,673,849.64 = 385,978,451,274.22 : x
  2. Step 2: Convert to fraction form
    711,139,092,424.56/981,372,673,849.64 = 385,978,451,274.22/x
  3. Step 3: Cross multiply
    711,139,092,424.56x = 981,372,673,849.64 × 385,978,451,274.22
  4. Step 4: Simplify right side
    711,139,092,424.56x = 378,788,704,775,324,242,542,592
  5. Step 5: Solve for x
    x = 378,788,704,775,324,242,542,592/711,139,092,424.56
  6. Step 6: Final answer
    x = 532,650,656,967.66

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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.