Home / 172,389,869.20-258,584,803.80-107,766,643.60

Finding the Fourth Proportional to 172,389,869.20, 258,584,803.80 and 107,766,643.60

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Solution

The fourth proportional to 172,389,869.20, 258,584,803.80 and 107,766,643.60 is: 161,649,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,389,869.20 : 258,584,803.80 = 107,766,643.60 : x
  2. Step 2: Convert to fraction form
    172,389,869.20/258,584,803.80 = 107,766,643.60/x
  3. Step 3: Cross multiply
    172,389,869.20x = 258,584,803.80 × 107,766,643.60
  4. Step 4: Simplify right side
    172,389,869.20x = 27,866,816,391,490,524
  5. Step 5: Solve for x
    x = 27,866,816,391,490,524/172,389,869.20
  6. Step 6: Final answer
    x = 161,649,965.40

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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.