Home / 5,385,343.20-8,078,014.80-5,172,766.80

Finding the Fourth Proportional to 5,385,343.20, 8,078,014.80 and 5,172,766.80

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Solution

The fourth proportional to 5,385,343.20, 8,078,014.80 and 5,172,766.80 is: 7,759,150.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385,343.20 : 8,078,014.80 = 5,172,766.80 : x
  2. Step 2: Convert to fraction form
    5,385,343.20/8,078,014.80 = 5,172,766.80/x
  3. Step 3: Cross multiply
    5,385,343.20x = 8,078,014.80 × 5,172,766.80
  4. Step 4: Simplify right side
    5,385,343.20x = 41,785,686,767,348.64
  5. Step 5: Solve for x
    x = 41,785,686,767,348.64/5,385,343.20
  6. Step 6: Final answer
    x = 7,759,150.20

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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.