Home / 8,292,025.20-12,438,037.80-7,620,178.80

Finding the Fourth Proportional to 8,292,025.20, 12,438,037.80 and 7,620,178.80

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Solution

The fourth proportional to 8,292,025.20, 12,438,037.80 and 7,620,178.80 is: 11,430,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,292,025.20 : 12,438,037.80 = 7,620,178.80 : x
  2. Step 2: Convert to fraction form
    8,292,025.20/12,438,037.80 = 7,620,178.80/x
  3. Step 3: Cross multiply
    8,292,025.20x = 12,438,037.80 × 7,620,178.80
  4. Step 4: Simplify right side
    8,292,025.20x = 94,780,071,957,158.64
  5. Step 5: Solve for x
    x = 94,780,071,957,158.64/8,292,025.20
  6. Step 6: Final answer
    x = 11,430,268.20

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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.