Home / 91,003,685.80-136,505,528.70-80,233,148.20

Finding the Fourth Proportional to 91,003,685.80, 136,505,528.70 and 80,233,148.20

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Solution

The fourth proportional to 91,003,685.80, 136,505,528.70 and 80,233,148.20 is: 120,349,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,003,685.80 : 136,505,528.70 = 80,233,148.20 : x
  2. Step 2: Convert to fraction form
    91,003,685.80/136,505,528.70 = 80,233,148.20/x
  3. Step 3: Cross multiply
    91,003,685.80x = 136,505,528.70 × 80,233,148.20
  4. Step 4: Simplify right side
    91,003,685.80x = 10,952,268,314,306,452
  5. Step 5: Solve for x
    x = 10,952,268,314,306,452/91,003,685.80
  6. Step 6: Final answer
    x = 120,349,722.30

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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.