Home / 711,306,410.08-981,614,468.52-389,429,007.52

Finding the Fourth Proportional to 711,306,410.08, 981,614,468.52 and 389,429,007.52

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Solution

The fourth proportional to 711,306,410.08, 981,614,468.52 and 389,429,007.52 is: 537,418,393.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,306,410.08 : 981,614,468.52 = 389,429,007.52 : x
  2. Step 2: Convert to fraction form
    711,306,410.08/981,614,468.52 = 389,429,007.52/x
  3. Step 3: Cross multiply
    711,306,410.08x = 981,614,468.52 × 389,429,007.52
  4. Step 4: Simplify right side
    711,306,410.08x = 382,269,148,243,015,872
  5. Step 5: Solve for x
    x = 382,269,148,243,015,872/711,306,410.08
  6. Step 6: Final answer
    x = 537,418,393.57

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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.