Home / 5,343,780.20-8,020,919.10-2,651,145.80

Finding the Fourth Proportional to 5,343,780.20, 8,020,919.10 and 2,651,145.80

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Solution

The fourth proportional to 5,343,780.20, 8,020,919.10 and 2,651,145.80 is: 3,979,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343,780.20 : 8,020,919.10 = 2,651,145.80 : x
  2. Step 2: Convert to fraction form
    5,343,780.20/8,020,919.10 = 2,651,145.80/x
  3. Step 3: Cross multiply
    5,343,780.20x = 8,020,919.10 × 2,651,145.80
  4. Step 4: Simplify right side
    5,343,780.20x = 21,264,625,984,104.78
  5. Step 5: Solve for x
    x = 21,264,625,984,104.78/5,343,780.20
  6. Step 6: Final answer
    x = 3,979,322.72

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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.