Home / 45,640,318.66-68,468,449.57-20,080,663.76

Finding the Fourth Proportional to 45,640,318.66, 68,468,449.57 and 20,080,663.76

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Solution

The fourth proportional to 45,640,318.66, 68,468,449.57 and 20,080,663.76 is: 30,124,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,640,318.66 : 68,468,449.57 = 20,080,663.76 : x
  2. Step 2: Convert to fraction form
    45,640,318.66/68,468,449.57 = 20,080,663.76/x
  3. Step 3: Cross multiply
    45,640,318.66x = 68,468,449.57 × 20,080,663.76
  4. Step 4: Simplify right side
    45,640,318.66x = 1,374,891,914,104,656
  5. Step 5: Solve for x
    x = 1,374,891,914,104,656/45,640,318.66
  6. Step 6: Final answer
    x = 30,124,502.95

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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.