Home / 20,222,678.60-30,334,017.90-13,420,233.80

Finding the Fourth Proportional to 20,222,678.60, 30,334,017.90 and 13,420,233.80

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Solution

The fourth proportional to 20,222,678.60, 30,334,017.90 and 13,420,233.80 is: 20,130,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222,678.60 : 30,334,017.90 = 13,420,233.80 : x
  2. Step 2: Convert to fraction form
    20,222,678.60/30,334,017.90 = 13,420,233.80/x
  3. Step 3: Cross multiply
    20,222,678.60x = 30,334,017.90 × 13,420,233.80
  4. Step 4: Simplify right side
    20,222,678.60x = 407,089,612,311,385
  5. Step 5: Solve for x
    x = 407,089,612,311,385/20,222,678.60
  6. Step 6: Final answer
    x = 20,130,350.70

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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.