Home / 289,700,781.66-399,781,535.49-159,320,589.66

Finding the Fourth Proportional to 289,700,781.66, 399,781,535.49 and 159,320,589.66

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Solution

The fourth proportional to 289,700,781.66, 399,781,535.49 and 159,320,589.66 is: 219,859,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,700,781.66 : 399,781,535.49 = 159,320,589.66 : x
  2. Step 2: Convert to fraction form
    289,700,781.66/399,781,535.49 = 159,320,589.66/x
  3. Step 3: Cross multiply
    289,700,781.66x = 399,781,535.49 × 159,320,589.66
  4. Step 4: Simplify right side
    289,700,781.66x = 63,693,429,969,447,016
  5. Step 5: Solve for x
    x = 63,693,429,969,447,016/289,700,781.66
  6. Step 6: Final answer
    x = 219,859,365.25

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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.