Home / 306,069,979.20-459,228,002.40-124,331,380.80

Finding the Fourth Proportional to 306,069,979.20, 459,228,002.40 and 124,331,380.80

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Solution

The fourth proportional to 306,069,979.20, 459,228,002.40 and 124,331,380.80 is: 186,547,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,069,979.20 : 459,228,002.40 = 124,331,380.80 : x
  2. Step 2: Convert to fraction form
    306,069,979.20/459,228,002.40 = 124,331,380.80/x
  3. Step 3: Cross multiply
    306,069,979.20x = 459,228,002.40 × 124,331,380.80
  4. Step 4: Simplify right side
    306,069,979.20x = 57,096,451,640,417,712
  5. Step 5: Solve for x
    x = 57,096,451,640,417,712/306,069,979.20
  6. Step 6: Final answer
    x = 186,547,049.76

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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.