Home / 91,556,043.20-137,334,064.80-81,470,052.80

Finding the Fourth Proportional to 91,556,043.20, 137,334,064.80 and 81,470,052.80

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Solution

The fourth proportional to 91,556,043.20, 137,334,064.80 and 81,470,052.80 is: 122,205,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,556,043.20 : 137,334,064.80 = 81,470,052.80 : x
  2. Step 2: Convert to fraction form
    91,556,043.20/137,334,064.80 = 81,470,052.80/x
  3. Step 3: Cross multiply
    91,556,043.20x = 137,334,064.80 × 81,470,052.80
  4. Step 4: Simplify right side
    91,556,043.20x = 11,188,613,510,494,622
  5. Step 5: Solve for x
    x = 11,188,613,510,494,622/91,556,043.20
  6. Step 6: Final answer
    x = 122,205,079.20

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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.