Home / 3,155,881.29-4,354,090.63-1,930,909.78

Finding the Fourth Proportional to 3,155,881.29, 4,354,090.63 and 1,930,909.78

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Solution

The fourth proportional to 3,155,881.29, 4,354,090.63 and 1,930,909.78 is: 2,664,028.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155,881.29 : 4,354,090.63 = 1,930,909.78 : x
  2. Step 2: Convert to fraction form
    3,155,881.29/4,354,090.63 = 1,930,909.78/x
  3. Step 3: Cross multiply
    3,155,881.29x = 4,354,090.63 × 1,930,909.78
  4. Step 4: Simplify right side
    3,155,881.29x = 8,407,356,180,473.36
  5. Step 5: Solve for x
    x = 8,407,356,180,473.36/3,155,881.29
  6. Step 6: Final answer
    x = 2,664,028.02

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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.