Home / 20,723,216.40-31,084,824.60-20,325,085.20

Finding the Fourth Proportional to 20,723,216.40, 31,084,824.60 and 20,325,085.20

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Solution

The fourth proportional to 20,723,216.40, 31,084,824.60 and 20,325,085.20 is: 30,487,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,216.40 : 31,084,824.60 = 20,325,085.20 : x
  2. Step 2: Convert to fraction form
    20,723,216.40/31,084,824.60 = 20,325,085.20/x
  3. Step 3: Cross multiply
    20,723,216.40x = 31,084,824.60 × 20,325,085.20
  4. Step 4: Simplify right side
    20,723,216.40x = 631,801,708,422,055.88
  5. Step 5: Solve for x
    x = 631,801,708,422,055.88/20,723,216.40
  6. Step 6: Final answer
    x = 30,487,627.80

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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.