Home / 20,723,211.40-31,084,817.10-20,325,080.20

Finding the Fourth Proportional to 20,723,211.40, 31,084,817.10 and 20,325,080.20

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Solution

The fourth proportional to 20,723,211.40, 31,084,817.10 and 20,325,080.20 is: 30,487,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,211.40 : 31,084,817.10 = 20,325,080.20 : x
  2. Step 2: Convert to fraction form
    20,723,211.40/31,084,817.10 = 20,325,080.20/x
  3. Step 3: Cross multiply
    20,723,211.40x = 31,084,817.10 × 20,325,080.20
  4. Step 4: Simplify right side
    20,723,211.40x = 631,801,400,559,831.38
  5. Step 5: Solve for x
    x = 631,801,400,559,831.38/20,723,211.40
  6. Step 6: Final answer
    x = 30,487,620.30

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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.