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Finding the Fourth Proportional to 80,773,959.60, 121,161,630.60 and 26,921,271.60

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Solution

The fourth proportional to 80,773,959.60, 121,161,630.60 and 26,921,271.60 is: 40,382,137.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,773,959.60 : 121,161,630.60 = 26,921,271.60 : x
  2. Step 2: Convert to fraction form
    80,773,959.60/121,161,630.60 = 26,921,271.60/x
  3. Step 3: Cross multiply
    80,773,959.60x = 121,161,630.60 × 26,921,271.60
  4. Step 4: Simplify right side
    80,773,959.60x = 3,261,825,164,881,471
  5. Step 5: Solve for x
    x = 3,261,825,164,881,471/80,773,959.60
  6. Step 6: Final answer
    x = 40,382,137.77

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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.