Home / 201,112,959.40-301,669,439.10-109,279,954.60

Finding the Fourth Proportional to 201,112,959.40, 301,669,439.10 and 109,279,954.60

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Solution

The fourth proportional to 201,112,959.40, 301,669,439.10 and 109,279,954.60 is: 163,919,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,112,959.40 : 301,669,439.10 = 109,279,954.60 : x
  2. Step 2: Convert to fraction form
    201,112,959.40/301,669,439.10 = 109,279,954.60/x
  3. Step 3: Cross multiply
    201,112,959.40x = 301,669,439.10 × 109,279,954.60
  4. Step 4: Simplify right side
    201,112,959.40x = 32,966,422,609,055,464
  5. Step 5: Solve for x
    x = 32,966,422,609,055,464/201,112,959.40
  6. Step 6: Final answer
    x = 163,919,931.90

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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.