Home / 20,232,079.40-30,348,119.10-9,992,982.80

Finding the Fourth Proportional to 20,232,079.40, 30,348,119.10 and 9,992,982.80

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Solution

The fourth proportional to 20,232,079.40, 30,348,119.10 and 9,992,982.80 is: 14,989,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232,079.40 : 30,348,119.10 = 9,992,982.80 : x
  2. Step 2: Convert to fraction form
    20,232,079.40/30,348,119.10 = 9,992,982.80/x
  3. Step 3: Cross multiply
    20,232,079.40x = 30,348,119.10 × 9,992,982.80
  4. Step 4: Simplify right side
    20,232,079.40x = 303,268,232,178,651.50
  5. Step 5: Solve for x
    x = 303,268,232,178,651.50/20,232,079.40
  6. Step 6: Final answer
    x = 14,989,474.20

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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.