Home / 78,945,161.88-108,948,409.39-45,459,614.86

Finding the Fourth Proportional to 78,945,161.88, 108,948,409.39 and 45,459,614.86

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Solution

The fourth proportional to 78,945,161.88, 108,948,409.39 and 45,459,614.86 is: 62,736,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,945,161.88 : 108,948,409.39 = 45,459,614.86 : x
  2. Step 2: Convert to fraction form
    78,945,161.88/108,948,409.39 = 45,459,614.86/x
  3. Step 3: Cross multiply
    78,945,161.88x = 108,948,409.39 × 45,459,614.86
  4. Step 4: Simplify right side
    78,945,161.88x = 4,952,752,730,876,405
  5. Step 5: Solve for x
    x = 4,952,752,730,876,405/78,945,161.88
  6. Step 6: Final answer
    x = 62,736,621.38

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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.