Home / 289,386,575.20-434,079,862.80-268,979,240.80

Finding the Fourth Proportional to 289,386,575.20, 434,079,862.80 and 268,979,240.80

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Solution

The fourth proportional to 289,386,575.20, 434,079,862.80 and 268,979,240.80 is: 403,468,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,386,575.20 : 434,079,862.80 = 268,979,240.80 : x
  2. Step 2: Convert to fraction form
    289,386,575.20/434,079,862.80 = 268,979,240.80/x
  3. Step 3: Cross multiply
    289,386,575.20x = 434,079,862.80 × 268,979,240.80
  4. Step 4: Simplify right side
    289,386,575.20x = 116,758,471,942,512,176
  5. Step 5: Solve for x
    x = 116,758,471,942,512,176/289,386,575.20
  6. Step 6: Final answer
    x = 403,468,861.20

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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.