Home / 13,385,487.60-20,120,221.80-13,133,545.20

Finding the Fourth Proportional to 13,385,487.60, 20,120,221.80 and 13,133,545.20

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Solution

The fourth proportional to 13,385,487.60, 20,120,221.80 and 13,133,545.20 is: 19,741,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385,487.60 : 20,120,221.80 = 13,133,545.20 : x
  2. Step 2: Convert to fraction form
    13,385,487.60/20,120,221.80 = 13,133,545.20/x
  3. Step 3: Cross multiply
    13,385,487.60x = 20,120,221.80 × 13,133,545.20
  4. Step 4: Simplify right side
    13,385,487.60x = 264,249,842,444,325.34
  5. Step 5: Solve for x
    x = 264,249,842,444,325.34/13,385,487.60
  6. Step 6: Final answer
    x = 19,741,517.85

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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.