Home / 13,486,544.80-20,229,817.20-7,723,362.40

Finding the Fourth Proportional to 13,486,544.80, 20,229,817.20 and 7,723,362.40

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Solution

The fourth proportional to 13,486,544.80, 20,229,817.20 and 7,723,362.40 is: 11,585,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,544.80 : 20,229,817.20 = 7,723,362.40 : x
  2. Step 2: Convert to fraction form
    13,486,544.80/20,229,817.20 = 7,723,362.40/x
  3. Step 3: Cross multiply
    13,486,544.80x = 20,229,817.20 × 7,723,362.40
  4. Step 4: Simplify right side
    13,486,544.80x = 156,242,209,521,353.28
  5. Step 5: Solve for x
    x = 156,242,209,521,353.28/13,486,544.80
  6. Step 6: Final answer
    x = 11,585,043.60

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1.5x scale

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.