Home / 408,364,472.10-612,785,856.60-149,605,849.20

Finding the Fourth Proportional to 408,364,472.10, 612,785,856.60 and 149,605,849.20

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Solution

The fourth proportional to 408,364,472.10, 612,785,856.60 and 149,605,849.20 is: 224,496,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,364,472.10 : 612,785,856.60 = 149,605,849.20 : x
  2. Step 2: Convert to fraction form
    408,364,472.10/612,785,856.60 = 149,605,849.20/x
  3. Step 3: Cross multiply
    408,364,472.10x = 612,785,856.60 × 149,605,849.20
  4. Step 4: Simplify right side
    408,364,472.10x = 91,676,348,454,392,416
  5. Step 5: Solve for x
    x = 91,676,348,454,392,416/408,364,472.10
  6. Step 6: Final answer
    x = 224,496,386.73

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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.