Home / 330,784,296.40-496,176,444.60-279,128,231.20

Finding the Fourth Proportional to 330,784,296.40, 496,176,444.60 and 279,128,231.20

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Solution

The fourth proportional to 330,784,296.40, 496,176,444.60 and 279,128,231.20 is: 418,692,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,784,296.40 : 496,176,444.60 = 279,128,231.20 : x
  2. Step 2: Convert to fraction form
    330,784,296.40/496,176,444.60 = 279,128,231.20/x
  3. Step 3: Cross multiply
    330,784,296.40x = 496,176,444.60 × 279,128,231.20
  4. Step 4: Simplify right side
    330,784,296.40x = 138,496,853,344,302,800
  5. Step 5: Solve for x
    x = 138,496,853,344,302,800/330,784,296.40
  6. Step 6: Final answer
    x = 418,692,346.80

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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.