Home / 12,503,083.30-18,742,815.15-7,389,439.90

Finding the Fourth Proportional to 12,503,083.30, 18,742,815.15 and 7,389,439.90

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Solution

The fourth proportional to 12,503,083.30, 18,742,815.15 and 7,389,439.90 is: 11,077,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503,083.30 : 18,742,815.15 = 7,389,439.90 : x
  2. Step 2: Convert to fraction form
    12,503,083.30/18,742,815.15 = 7,389,439.90/x
  3. Step 3: Cross multiply
    12,503,083.30x = 18,742,815.15 × 7,389,439.90
  4. Step 4: Simplify right side
    12,503,083.30x = 138,498,906,107,734.48
  5. Step 5: Solve for x
    x = 138,498,906,107,734.48/12,503,083.30
  6. Step 6: Final answer
    x = 11,077,180.15

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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.