Home / 86,324,180.80-129,486,271.20-79,269,793.60

Finding the Fourth Proportional to 86,324,180.80, 129,486,271.20 and 79,269,793.60

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Solution

The fourth proportional to 86,324,180.80, 129,486,271.20 and 79,269,793.60 is: 118,904,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,324,180.80 : 129,486,271.20 = 79,269,793.60 : x
  2. Step 2: Convert to fraction form
    86,324,180.80/129,486,271.20 = 79,269,793.60/x
  3. Step 3: Cross multiply
    86,324,180.80x = 129,486,271.20 × 79,269,793.60
  4. Step 4: Simplify right side
    86,324,180.80x = 10,264,349,992,057,624
  5. Step 5: Solve for x
    x = 10,264,349,992,057,624/86,324,180.80
  6. Step 6: Final answer
    x = 118,904,690.40

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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.