Home / 172,601,662.18-258,900,721.49-99,772,101.81

Finding the Fourth Proportional to 172,601,662.18, 258,900,721.49 and 99,772,101.81

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Solution

The fourth proportional to 172,601,662.18, 258,900,721.49 and 99,772,101.81 is: 149,657,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,601,662.18 : 258,900,721.49 = 99,772,101.81 : x
  2. Step 2: Convert to fraction form
    172,601,662.18/258,900,721.49 = 99,772,101.81/x
  3. Step 3: Cross multiply
    172,601,662.18x = 258,900,721.49 × 99,772,101.81
  4. Step 4: Simplify right side
    172,601,662.18x = 25,831,069,141,888,236
  5. Step 5: Solve for x
    x = 25,831,069,141,888,236/172,601,662.18
  6. Step 6: Final answer
    x = 149,657,128.53

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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.