Home / 172,601,662.68-258,900,722.24-99,772,102.31

Finding the Fourth Proportional to 172,601,662.68, 258,900,722.24 and 99,772,102.31

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Solution

The fourth proportional to 172,601,662.68, 258,900,722.24 and 99,772,102.31 is: 149,657,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,601,662.68 : 258,900,722.24 = 99,772,102.31 : x
  2. Step 2: Convert to fraction form
    172,601,662.68/258,900,722.24 = 99,772,102.31/x
  3. Step 3: Cross multiply
    172,601,662.68x = 258,900,722.24 × 99,772,102.31
  4. Step 4: Simplify right side
    172,601,662.68x = 25,831,069,346,167,672
  5. Step 5: Solve for x
    x = 25,831,069,346,167,672/172,601,662.68
  6. Step 6: Final answer
    x = 149,657,129.28

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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.