Home / 80,825,070.30-121,237,605.45-55,315,902.30

Finding the Fourth Proportional to 80,825,070.30, 121,237,605.45 and 55,315,902.30

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Solution

The fourth proportional to 80,825,070.30, 121,237,605.45 and 55,315,902.30 is: 82,973,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,825,070.30 : 121,237,605.45 = 55,315,902.30 : x
  2. Step 2: Convert to fraction form
    80,825,070.30/121,237,605.45 = 55,315,902.30/x
  3. Step 3: Cross multiply
    80,825,070.30x = 121,237,605.45 × 55,315,902.30
  4. Step 4: Simplify right side
    80,825,070.30x = 6,706,367,538,158,147
  5. Step 5: Solve for x
    x = 6,706,367,538,158,147/80,825,070.30
  6. Step 6: Final answer
    x = 82,973,853.45

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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.