Home / 12,872,022.60-19,280,040.30-7,814,512.20

Finding the Fourth Proportional to 12,872,022.60, 19,280,040.30 and 7,814,512.20

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Solution

The fourth proportional to 12,872,022.60, 19,280,040.30 and 7,814,512.20 is: 11,704,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,022.60 : 19,280,040.30 = 7,814,512.20 : x
  2. Step 2: Convert to fraction form
    12,872,022.60/19,280,040.30 = 7,814,512.20/x
  3. Step 3: Cross multiply
    12,872,022.60x = 19,280,040.30 × 7,814,512.20
  4. Step 4: Simplify right side
    12,872,022.60x = 150,664,110,140,841.66
  5. Step 5: Solve for x
    x = 150,664,110,140,841.66/12,872,022.60
  6. Step 6: Final answer
    x = 11,704,773.59

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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.