Home / 3,918,897.60-5,407,780.12-2,199,685.96

Finding the Fourth Proportional to 3,918,897.60, 5,407,780.12 and 2,199,685.96

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Solution

The fourth proportional to 3,918,897.60, 5,407,780.12 and 2,199,685.96 is: 3,035,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,897.60 : 5,407,780.12 = 2,199,685.96 : x
  2. Step 2: Convert to fraction form
    3,918,897.60/5,407,780.12 = 2,199,685.96/x
  3. Step 3: Cross multiply
    3,918,897.60x = 5,407,780.12 × 2,199,685.96
  4. Step 4: Simplify right side
    3,918,897.60x = 11,895,418,004,731.12
  5. Step 5: Solve for x
    x = 11,895,418,004,731.12/3,918,897.60
  6. Step 6: Final answer
    x = 3,035,399.04

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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.