Home / 80,901,206.60-121,351,809.90-53,691,427.40

Finding the Fourth Proportional to 80,901,206.60, 121,351,809.90 and 53,691,427.40

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Solution

The fourth proportional to 80,901,206.60, 121,351,809.90 and 53,691,427.40 is: 80,537,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901,206.60 : 121,351,809.90 = 53,691,427.40 : x
  2. Step 2: Convert to fraction form
    80,901,206.60/121,351,809.90 = 53,691,427.40/x
  3. Step 3: Cross multiply
    80,901,206.60x = 121,351,809.90 × 53,691,427.40
  4. Step 4: Simplify right side
    80,901,206.60x = 6,515,551,891,104,451
  5. Step 5: Solve for x
    x = 6,515,551,891,104,451/80,901,206.60
  6. Step 6: Final answer
    x = 80,537,141.10

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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.