Home / 615,681,624.48-924,995,753.88-394,785,749.46

Finding the Fourth Proportional to 615,681,624.48, 924,995,753.88 and 394,785,749.46

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Solution

The fourth proportional to 615,681,624.48, 924,995,753.88 and 394,785,749.46 is: 593,123,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,681,624.48 : 924,995,753.88 = 394,785,749.46 : x
  2. Step 2: Convert to fraction form
    615,681,624.48/924,995,753.88 = 394,785,749.46/x
  3. Step 3: Cross multiply
    615,681,624.48x = 924,995,753.88 × 394,785,749.46
  4. Step 4: Simplify right side
    615,681,624.48x = 365,175,141,942,833,472
  5. Step 5: Solve for x
    x = 365,175,141,942,833,472/615,681,624.48
  6. Step 6: Final answer
    x = 593,123,340.74

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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.