Home / 80,825,020.80-121,237,531.20-55,315,852.80

Finding the Fourth Proportional to 80,825,020.80, 121,237,531.20 and 55,315,852.80

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Solution

The fourth proportional to 80,825,020.80, 121,237,531.20 and 55,315,852.80 is: 82,973,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,825,020.80 : 121,237,531.20 = 55,315,852.80 : x
  2. Step 2: Convert to fraction form
    80,825,020.80/121,237,531.20 = 55,315,852.80/x
  3. Step 3: Cross multiply
    80,825,020.80x = 121,237,531.20 × 55,315,852.80
  4. Step 4: Simplify right side
    80,825,020.80x = 6,706,357,429,694,607
  5. Step 5: Solve for x
    x = 6,706,357,429,694,607/80,825,020.80
  6. Step 6: Final answer
    x = 82,973,779.20

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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.