Home / 209,946,704.28-315,328,722.66-171,113,851.14

Finding the Fourth Proportional to 209,946,704.28, 315,328,722.66 and 171,113,851.14

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Solution

The fourth proportional to 209,946,704.28, 315,328,722.66 and 171,113,851.14 is: 257,003,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,946,704.28 : 315,328,722.66 = 171,113,851.14 : x
  2. Step 2: Convert to fraction form
    209,946,704.28/315,328,722.66 = 171,113,851.14/x
  3. Step 3: Cross multiply
    209,946,704.28x = 315,328,722.66 × 171,113,851.14
  4. Step 4: Simplify right side
    209,946,704.28x = 53,957,112,109,409,584
  5. Step 5: Solve for x
    x = 53,957,112,109,409,584/209,946,704.28
  6. Step 6: Final answer
    x = 257,003,853.88

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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.