Home / 8,315,140.80-12,470,119.20-3,267,998.40

Finding the Fourth Proportional to 8,315,140.80, 12,470,119.20 and 3,267,998.40

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Solution

The fourth proportional to 8,315,140.80, 12,470,119.20 and 3,267,998.40 is: 4,900,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315,140.80 : 12,470,119.20 = 3,267,998.40 : x
  2. Step 2: Convert to fraction form
    8,315,140.80/12,470,119.20 = 3,267,998.40/x
  3. Step 3: Cross multiply
    8,315,140.80x = 12,470,119.20 × 3,267,998.40
  4. Step 4: Simplify right side
    8,315,140.80x = 40,752,329,593,409.27
  5. Step 5: Solve for x
    x = 40,752,329,593,409.27/8,315,140.80
  6. Step 6: Final answer
    x = 4,900,978.90

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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.