Home / 20,755,525.60-31,106,283.72-8,445,142.48

Finding the Fourth Proportional to 20,755,525.60, 31,106,283.72 and 8,445,142.48

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Solution

The fourth proportional to 20,755,525.60, 31,106,283.72 and 8,445,142.48 is: 12,656,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,525.60 : 31,106,283.72 = 8,445,142.48 : x
  2. Step 2: Convert to fraction form
    20,755,525.60/31,106,283.72 = 8,445,142.48/x
  3. Step 3: Cross multiply
    20,755,525.60x = 31,106,283.72 × 8,445,142.48
  4. Step 4: Simplify right side
    20,755,525.60x = 262,696,998,038,704.44
  5. Step 5: Solve for x
    x = 262,696,998,038,704.44/20,755,525.60
  6. Step 6: Final answer
    x = 12,656,725.88

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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.