Home / 168,022,840.80-251,530,376.40-99,830,431.20

Finding the Fourth Proportional to 168,022,840.80, 251,530,376.40 and 99,830,431.20

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Solution

The fourth proportional to 168,022,840.80, 251,530,376.40 and 99,830,431.20 is: 149,446,264.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,022,840.80 : 251,530,376.40 = 99,830,431.20 : x
  2. Step 2: Convert to fraction form
    168,022,840.80/251,530,376.40 = 99,830,431.20/x
  3. Step 3: Cross multiply
    168,022,840.80x = 251,530,376.40 × 99,830,431.20
  4. Step 4: Simplify right side
    168,022,840.80x = 25,110,385,935,910,304
  5. Step 5: Solve for x
    x = 25,110,385,935,910,304/168,022,840.80
  6. Step 6: Final answer
    x = 149,446,264.66

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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.