Home / 204,237,659.28-281,809,422.61-121,739,120.40

Finding the Fourth Proportional to 204,237,659.28, 281,809,422.61 and 121,739,120.40

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Solution

The fourth proportional to 204,237,659.28, 281,809,422.61 and 121,739,120.40 is: 167,977,009.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,237,659.28 : 281,809,422.61 = 121,739,120.40 : x
  2. Step 2: Convert to fraction form
    204,237,659.28/281,809,422.61 = 121,739,120.40/x
  3. Step 3: Cross multiply
    204,237,659.28x = 281,809,422.61 × 121,739,120.40
  4. Step 4: Simplify right side
    204,237,659.28x = 34,307,231,229,725,712
  5. Step 5: Solve for x
    x = 34,307,231,229,725,712/204,237,659.28
  6. Step 6: Final answer
    x = 167,977,009.48

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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.