Home / 418,744,922.29-628,118,170.75-172,831,818.85

Finding the Fourth Proportional to 418,744,922.29, 628,118,170.75 and 172,831,818.85

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Solution

The fourth proportional to 418,744,922.29, 628,118,170.75 and 172,831,818.85 is: 259,248,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,744,922.29 : 628,118,170.75 = 172,831,818.85 : x
  2. Step 2: Convert to fraction form
    418,744,922.29/628,118,170.75 = 172,831,818.85/x
  3. Step 3: Cross multiply
    418,744,922.29x = 628,118,170.75 × 172,831,818.85
  4. Step 4: Simplify right side
    418,744,922.29x = 108,558,805,903,874,416
  5. Step 5: Solve for x
    x = 108,558,805,903,874,416/418,744,922.29
  6. Step 6: Final answer
    x = 259,248,053.23

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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.