Home / 109,512,142.60-164,268,213.90-66,429,992.20

Finding the Fourth Proportional to 109,512,142.60, 164,268,213.90 and 66,429,992.20

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Solution

The fourth proportional to 109,512,142.60, 164,268,213.90 and 66,429,992.20 is: 99,644,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,512,142.60 : 164,268,213.90 = 66,429,992.20 : x
  2. Step 2: Convert to fraction form
    109,512,142.60/164,268,213.90 = 66,429,992.20/x
  3. Step 3: Cross multiply
    109,512,142.60x = 164,268,213.90 × 66,429,992.20
  4. Step 4: Simplify right side
    109,512,142.60x = 10,912,336,168,084,932
  5. Step 5: Solve for x
    x = 10,912,336,168,084,932/109,512,142.60
  6. Step 6: Final answer
    x = 99,644,988.30

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1.5x scale

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.