Home / 717,630,964.52-990,331,398.40-387,606,103.52

Finding the Fourth Proportional to 717,630,964.52, 990,331,398.40 and 387,606,103.52

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Solution

The fourth proportional to 717,630,964.52, 990,331,398.40 and 387,606,103.52 is: 534,896,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,630,964.52 : 990,331,398.40 = 387,606,103.52 : x
  2. Step 2: Convert to fraction form
    717,630,964.52/990,331,398.40 = 387,606,103.52/x
  3. Step 3: Cross multiply
    717,630,964.52x = 990,331,398.40 × 387,606,103.52
  4. Step 4: Simplify right side
    717,630,964.52x = 383,858,494,527,336,704
  5. Step 5: Solve for x
    x = 383,858,494,527,336,704/717,630,964.52
  6. Step 6: Final answer
    x = 534,896,783.31

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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.