Home / 296,543,010.32-408,986,701.64-208,727,709.20

Finding the Fourth Proportional to 296,543,010.32, 408,986,701.64 and 208,727,709.20

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Solution

The fourth proportional to 296,543,010.32, 408,986,701.64 and 208,727,709.20 is: 287,873,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,543,010.32 : 408,986,701.64 = 208,727,709.20 : x
  2. Step 2: Convert to fraction form
    296,543,010.32/408,986,701.64 = 208,727,709.20/x
  3. Step 3: Cross multiply
    296,543,010.32x = 408,986,701.64 × 208,727,709.20
  4. Step 4: Simplify right side
    296,543,010.32x = 85,366,857,326,581,072
  5. Step 5: Solve for x
    x = 85,366,857,326,581,072/296,543,010.32
  6. Step 6: Final answer
    x = 287,873,442.83

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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.