Home / 172,039,230.40-258,058,845.60-129,041,060.80

Finding the Fourth Proportional to 172,039,230.40, 258,058,845.60 and 129,041,060.80

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Solution

The fourth proportional to 172,039,230.40, 258,058,845.60 and 129,041,060.80 is: 193,561,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,039,230.40 : 258,058,845.60 = 129,041,060.80 : x
  2. Step 2: Convert to fraction form
    172,039,230.40/258,058,845.60 = 129,041,060.80/x
  3. Step 3: Cross multiply
    172,039,230.40x = 258,058,845.60 × 129,041,060.80
  4. Step 4: Simplify right side
    172,039,230.40x = 33,300,187,185,047,412
  5. Step 5: Solve for x
    x = 33,300,187,185,047,412/172,039,230.40
  6. Step 6: Final answer
    x = 193,561,591.20

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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.