Home / 303,220,223.42-418,443,908.97-163,990,985.16

Finding the Fourth Proportional to 303,220,223.42, 418,443,908.97 and 163,990,985.16

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Solution

The fourth proportional to 303,220,223.42, 418,443,908.97 and 163,990,985.16 is: 226,307,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,220,223.42 : 418,443,908.97 = 163,990,985.16 : x
  2. Step 2: Convert to fraction form
    303,220,223.42/418,443,908.97 = 163,990,985.16/x
  3. Step 3: Cross multiply
    303,220,223.42x = 418,443,908.97 × 163,990,985.16
  4. Step 4: Simplify right side
    303,220,223.42x = 68,621,028,866,191,664
  5. Step 5: Solve for x
    x = 68,621,028,866,191,664/303,220,223.42
  6. Step 6: Final answer
    x = 226,307,559.88

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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.