Home / 20,755,515.58-31,106,268.69-8,445,132.46

Finding the Fourth Proportional to 20,755,515.58, 31,106,268.69 and 8,445,132.46

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Solution

The fourth proportional to 20,755,515.58, 31,106,268.69 and 8,445,132.46 is: 12,656,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,515.58 : 31,106,268.69 = 8,445,132.46 : x
  2. Step 2: Convert to fraction form
    20,755,515.58/31,106,268.69 = 8,445,132.46/x
  3. Step 3: Cross multiply
    20,755,515.58x = 31,106,268.69 × 8,445,132.46
  4. Step 4: Simplify right side
    20,755,515.58x = 262,696,559,478,118.12
  5. Step 5: Solve for x
    x = 262,696,559,478,118.12/20,755,515.58
  6. Step 6: Final answer
    x = 12,656,710.86

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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.