Home / 168,023,414.80-251,531,237.40-99,831,005.20

Finding the Fourth Proportional to 168,023,414.80, 251,531,237.40 and 99,831,005.20

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Solution

The fourth proportional to 168,023,414.80, 251,531,237.40 and 99,831,005.20 is: 149,447,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,023,414.80 : 251,531,237.40 = 99,831,005.20 : x
  2. Step 2: Convert to fraction form
    168,023,414.80/251,531,237.40 = 99,831,005.20/x
  3. Step 3: Cross multiply
    168,023,414.80x = 251,531,237.40 × 99,831,005.20
  4. Step 4: Simplify right side
    168,023,414.80x = 25,110,616,268,841,836
  5. Step 5: Solve for x
    x = 25,110,616,268,841,836/168,023,414.80
  6. Step 6: Final answer
    x = 149,447,124.97

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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.