Home / 303,220,217.41-418,443,900.68-163,990,979.16

Finding the Fourth Proportional to 303,220,217.41, 418,443,900.68 and 163,990,979.16

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Solution

The fourth proportional to 303,220,217.41, 418,443,900.68 and 163,990,979.16 is: 226,307,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,220,217.41 : 418,443,900.68 = 163,990,979.16 : x
  2. Step 2: Convert to fraction form
    303,220,217.41/418,443,900.68 = 163,990,979.16/x
  3. Step 3: Cross multiply
    303,220,217.41x = 418,443,900.68 × 163,990,979.16
  4. Step 4: Simplify right side
    303,220,217.41x = 68,621,024,994,883,800
  5. Step 5: Solve for x
    x = 68,621,024,994,883,800/303,220,217.41
  6. Step 6: Final answer
    x = 226,307,551.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.