Home / 399,168,522.30-598,752,783.45-126,538,851.90

Finding the Fourth Proportional to 399,168,522.30, 598,752,783.45 and 126,538,851.90

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Solution

The fourth proportional to 399,168,522.30, 598,752,783.45 and 126,538,851.90 is: 189,808,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,168,522.30 : 598,752,783.45 = 126,538,851.90 : x
  2. Step 2: Convert to fraction form
    399,168,522.30/598,752,783.45 = 126,538,851.90/x
  3. Step 3: Cross multiply
    399,168,522.30x = 598,752,783.45 × 126,538,851.90
  4. Step 4: Simplify right side
    399,168,522.30x = 75,765,489,789,692,336
  5. Step 5: Solve for x
    x = 75,765,489,789,692,336/399,168,522.30
  6. Step 6: Final answer
    x = 189,808,277.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.