Home / 2,681,217.80-4,019,493.90-1,615,128.20

Finding the Fourth Proportional to 2,681,217.80, 4,019,493.90 and 1,615,128.20

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Solution

The fourth proportional to 2,681,217.80, 4,019,493.90 and 1,615,128.20 is: 2,421,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,217.80 : 4,019,493.90 = 1,615,128.20 : x
  2. Step 2: Convert to fraction form
    2,681,217.80/4,019,493.90 = 1,615,128.20/x
  3. Step 3: Cross multiply
    2,681,217.80x = 4,019,493.90 × 1,615,128.20
  4. Step 4: Simplify right side
    2,681,217.80x = 6,491,997,947,617.98
  5. Step 5: Solve for x
    x = 6,491,997,947,617.98/2,681,217.80
  6. Step 6: Final answer
    x = 2,421,287.05

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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.