Home / 7,917,278.80-11,875,918.20-3,438,302.80

Finding the Fourth Proportional to 7,917,278.80, 11,875,918.20 and 3,438,302.80

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Solution

The fourth proportional to 7,917,278.80, 11,875,918.20 and 3,438,302.80 is: 5,157,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917,278.80 : 11,875,918.20 = 3,438,302.80 : x
  2. Step 2: Convert to fraction form
    7,917,278.80/11,875,918.20 = 3,438,302.80/x
  3. Step 3: Cross multiply
    7,917,278.80x = 11,875,918.20 × 3,438,302.80
  4. Step 4: Simplify right side
    7,917,278.80x = 40,833,002,799,630.95
  5. Step 5: Solve for x
    x = 40,833,002,799,630.95/7,917,278.80
  6. Step 6: Final answer
    x = 5,157,454.20

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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.