Home / 280,079,193.65-386,543,179.70-159,406,520.91

Finding the Fourth Proportional to 280,079,193.65, 386,543,179.70 and 159,406,520.91

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Solution

The fourth proportional to 280,079,193.65, 386,543,179.70 and 159,406,520.91 is: 220,000,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,079,193.65 : 386,543,179.70 = 159,406,520.91 : x
  2. Step 2: Convert to fraction form
    280,079,193.65/386,543,179.70 = 159,406,520.91/x
  3. Step 3: Cross multiply
    280,079,193.65x = 386,543,179.70 × 159,406,520.91
  4. Step 4: Simplify right side
    280,079,193.65x = 61,617,503,457,193,176
  5. Step 5: Solve for x
    x = 61,617,503,457,193,176/280,079,193.65
  6. Step 6: Final answer
    x = 220,000,288.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.