Home / 20,755,522.22-31,106,278.53-8,445,139.18

Finding the Fourth Proportional to 20,755,522.22, 31,106,278.53 and 8,445,139.18

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Solution

The fourth proportional to 20,755,522.22, 31,106,278.53 and 8,445,139.18 is: 12,656,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,522.22 : 31,106,278.53 = 8,445,139.18 : x
  2. Step 2: Convert to fraction form
    20,755,522.22/31,106,278.53 = 8,445,139.18/x
  3. Step 3: Cross multiply
    20,755,522.22x = 31,106,278.53 × 8,445,139.18
  4. Step 4: Simplify right side
    20,755,522.22x = 262,696,851,479,930.12
  5. Step 5: Solve for x
    x = 262,696,851,479,930.12/20,755,522.22
  6. Step 6: Final answer
    x = 12,656,720.88

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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.