Home / 711,306,406.08-981,614,463-389,429,003.52

Finding the Fourth Proportional to 711,306,406.08, 981,614,463 and 389,429,003.52

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Solution

The fourth proportional to 711,306,406.08, 981,614,463 and 389,429,003.52 is: 537,418,388.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,306,406.08 : 981,614,463 = 389,429,003.52 : x
  2. Step 2: Convert to fraction form
    711,306,406.08/981,614,463 = 389,429,003.52/x
  3. Step 3: Cross multiply
    711,306,406.08x = 981,614,463 × 389,429,003.52
  4. Step 4: Simplify right side
    711,306,406.08x = 382,269,142,166,909,888
  5. Step 5: Solve for x
    x = 382,269,142,166,909,888/711,306,406.08
  6. Step 6: Final answer
    x = 537,418,388.05

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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.