Home / 393,984,606.30-590,976,909.45-121,319,943.90

Finding the Fourth Proportional to 393,984,606.30, 590,976,909.45 and 121,319,943.90

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Solution

The fourth proportional to 393,984,606.30, 590,976,909.45 and 121,319,943.90 is: 181,979,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,606.30 : 590,976,909.45 = 121,319,943.90 : x
  2. Step 2: Convert to fraction form
    393,984,606.30/590,976,909.45 = 121,319,943.90/x
  3. Step 3: Cross multiply
    393,984,606.30x = 590,976,909.45 × 121,319,943.90
  4. Step 4: Simplify right side
    393,984,606.30x = 71,697,285,500,669,392
  5. Step 5: Solve for x
    x = 71,697,285,500,669,392/393,984,606.30
  6. Step 6: Final answer
    x = 181,979,915.85

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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.