Home / 10,357,540.80-15,536,311.20-5,318,692.80

Finding the Fourth Proportional to 10,357,540.80, 15,536,311.20 and 5,318,692.80

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Solution

The fourth proportional to 10,357,540.80, 15,536,311.20 and 5,318,692.80 is: 7,978,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357,540.80 : 15,536,311.20 = 5,318,692.80 : x
  2. Step 2: Convert to fraction form
    10,357,540.80/15,536,311.20 = 5,318,692.80/x
  3. Step 3: Cross multiply
    10,357,540.80x = 15,536,311.20 × 5,318,692.80
  4. Step 4: Simplify right side
    10,357,540.80x = 82,632,866,517,999.36
  5. Step 5: Solve for x
    x = 82,632,866,517,999.36/10,357,540.80
  6. Step 6: Final answer
    x = 7,978,039.20

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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.