Home / 20,334,153.60-30,501,230.40-12,271,996.80

Finding the Fourth Proportional to 20,334,153.60, 30,501,230.40 and 12,271,996.80

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Solution

The fourth proportional to 20,334,153.60, 30,501,230.40 and 12,271,996.80 is: 18,407,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,153.60 : 30,501,230.40 = 12,271,996.80 : x
  2. Step 2: Convert to fraction form
    20,334,153.60/30,501,230.40 = 12,271,996.80/x
  3. Step 3: Cross multiply
    20,334,153.60x = 30,501,230.40 × 12,271,996.80
  4. Step 4: Simplify right side
    20,334,153.60x = 374,311,001,864,862.75
  5. Step 5: Solve for x
    x = 374,311,001,864,862.75/20,334,153.60
  6. Step 6: Final answer
    x = 18,407,995.20

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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.