Home / 10,634,078.40-15,970,363.20-9,311,380.80

Finding the Fourth Proportional to 10,634,078.40, 15,970,363.20 and 9,311,380.80

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Solution

The fourth proportional to 10,634,078.40, 15,970,363.20 and 9,311,380.80 is: 13,983,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,634,078.40 : 15,970,363.20 = 9,311,380.80 : x
  2. Step 2: Convert to fraction form
    10,634,078.40/15,970,363.20 = 9,311,380.80/x
  3. Step 3: Cross multiply
    10,634,078.40x = 15,970,363.20 × 9,311,380.80
  4. Step 4: Simplify right side
    10,634,078.40x = 148,706,133,269,506.56
  5. Step 5: Solve for x
    x = 148,706,133,269,506.56/10,634,078.40
  6. Step 6: Final answer
    x = 13,983,922.98

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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.