Home / 303,220,219.66-418,443,903.79-163,990,981.42

Finding the Fourth Proportional to 303,220,219.66, 418,443,903.79 and 163,990,981.42

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Solution

The fourth proportional to 303,220,219.66, 418,443,903.79 and 163,990,981.42 is: 226,307,554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,220,219.66 : 418,443,903.79 = 163,990,981.42 : x
  2. Step 2: Convert to fraction form
    303,220,219.66/418,443,903.79 = 163,990,981.42/x
  3. Step 3: Cross multiply
    303,220,219.66x = 418,443,903.79 × 163,990,981.42
  4. Step 4: Simplify right side
    303,220,219.66x = 68,621,026,450,282,072
  5. Step 5: Solve for x
    x = 68,621,026,450,282,072/303,220,219.66
  6. Step 6: Final answer
    x = 226,307,554.71

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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.