Home / 205,850,045.20-308,491,632.60-136,565,885.20

Finding the Fourth Proportional to 205,850,045.20, 308,491,632.60 and 136,565,885.20

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Solution

The fourth proportional to 205,850,045.20, 308,491,632.60 and 136,565,885.20 is: 204,660,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,850,045.20 : 308,491,632.60 = 136,565,885.20 : x
  2. Step 2: Convert to fraction form
    205,850,045.20/308,491,632.60 = 136,565,885.20/x
  3. Step 3: Cross multiply
    205,850,045.20x = 308,491,632.60 × 136,565,885.20
  4. Step 4: Simplify right side
    205,850,045.20x = 42,129,432,882,812,176
  5. Step 5: Solve for x
    x = 42,129,432,882,812,176/205,850,045.20
  6. Step 6: Final answer
    x = 204,660,790.05

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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.