Home / 20,755,530.59-31,106,291.22-8,445,147.48

Finding the Fourth Proportional to 20,755,530.59, 31,106,291.22 and 8,445,147.48

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Solution

The fourth proportional to 20,755,530.59, 31,106,291.22 and 8,445,147.48 is: 12,656,733.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,530.59 : 31,106,291.22 = 8,445,147.48 : x
  2. Step 2: Convert to fraction form
    20,755,530.59/31,106,291.22 = 8,445,147.48/x
  3. Step 3: Cross multiply
    20,755,530.59x = 31,106,291.22 × 8,445,147.48
  4. Step 4: Simplify right side
    20,755,530.59x = 262,697,216,908,729.12
  5. Step 5: Solve for x
    x = 262,697,216,908,729.12/20,755,530.59
  6. Step 6: Final answer
    x = 12,656,733.39

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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.