Home / 80,825,089.80-121,237,634.70-55,315,921.80

Finding the Fourth Proportional to 80,825,089.80, 121,237,634.70 and 55,315,921.80

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Solution

The fourth proportional to 80,825,089.80, 121,237,634.70 and 55,315,921.80 is: 82,973,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,825,089.80 : 121,237,634.70 = 55,315,921.80 : x
  2. Step 2: Convert to fraction form
    80,825,089.80/121,237,634.70 = 55,315,921.80/x
  3. Step 3: Cross multiply
    80,825,089.80x = 121,237,634.70 × 55,315,921.80
  4. Step 4: Simplify right side
    80,825,089.80x = 6,706,371,520,282,166
  5. Step 5: Solve for x
    x = 6,706,371,520,282,166/80,825,089.80
  6. Step 6: Final answer
    x = 82,973,882.70

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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.