Home / 8,619,700.64-12,929,550.80-8,188,679.78

Finding the Fourth Proportional to 8,619,700.64, 12,929,550.80 and 8,188,679.78

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Solution

The fourth proportional to 8,619,700.64, 12,929,550.80 and 8,188,679.78 is: 12,283,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,700.64 : 12,929,550.80 = 8,188,679.78 : x
  2. Step 2: Convert to fraction form
    8,619,700.64/12,929,550.80 = 8,188,679.78/x
  3. Step 3: Cross multiply
    8,619,700.64x = 12,929,550.80 × 8,188,679.78
  4. Step 4: Simplify right side
    8,619,700.64x = 105,875,951,200,442.83
  5. Step 5: Solve for x
    x = 105,875,951,200,442.83/8,619,700.64
  6. Step 6: Final answer
    x = 12,283,019.52

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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.