Home / 2,681,220.80-4,019,498.40-1,615,131.20

Finding the Fourth Proportional to 2,681,220.80, 4,019,498.40 and 1,615,131.20

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Solution

The fourth proportional to 2,681,220.80, 4,019,498.40 and 1,615,131.20 is: 2,421,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,220.80 : 4,019,498.40 = 1,615,131.20 : x
  2. Step 2: Convert to fraction form
    2,681,220.80/4,019,498.40 = 1,615,131.20/x
  3. Step 3: Cross multiply
    2,681,220.80x = 4,019,498.40 × 1,615,131.20
  4. Step 4: Simplify right side
    2,681,220.80x = 6,492,017,274,190.08
  5. Step 5: Solve for x
    x = 6,492,017,274,190.08/2,681,220.80
  6. Step 6: Final answer
    x = 2,421,291.55

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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.