Home / 78,833,757.15-108,000,443.13-75,886,332.39

Finding the Fourth Proportional to 78,833,757.15, 108,000,443.13 and 75,886,332.39

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Solution

The fourth proportional to 78,833,757.15, 108,000,443.13 and 75,886,332.39 is: 103,962,538.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,757.15 : 108,000,443.13 = 75,886,332.39 : x
  2. Step 2: Convert to fraction form
    78,833,757.15/108,000,443.13 = 75,886,332.39/x
  3. Step 3: Cross multiply
    78,833,757.15x = 108,000,443.13 × 75,886,332.39
  4. Step 4: Simplify right side
    78,833,757.15x = 8,195,757,525,090,470
  5. Step 5: Solve for x
    x = 8,195,757,525,090,470/78,833,757.15
  6. Step 6: Final answer
    x = 103,962,538.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.