Home / 12,831,115.20-19,251,856.80-5,644,017.60

Finding the Fourth Proportional to 12,831,115.20, 19,251,856.80 and 5,644,017.60

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Solution

The fourth proportional to 12,831,115.20, 19,251,856.80 and 5,644,017.60 is: 8,468,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831,115.20 : 19,251,856.80 = 5,644,017.60 : x
  2. Step 2: Convert to fraction form
    12,831,115.20/19,251,856.80 = 5,644,017.60/x
  3. Step 3: Cross multiply
    12,831,115.20x = 19,251,856.80 × 5,644,017.60
  4. Step 4: Simplify right side
    12,831,115.20x = 108,657,818,611,879.67
  5. Step 5: Solve for x
    x = 108,657,818,611,879.67/12,831,115.20
  6. Step 6: Final answer
    x = 8,468,306.68

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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.