Home / 312,271,340,791.28-430,775,853,351.11-203,947,845,653.46

Finding the Fourth Proportional to 312,271,340,791.28, 430,775,853,351.11 and 203,947,845,653.46

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Solution

The fourth proportional to 312,271,340,791.28, 430,775,853,351.11 and 203,947,845,653.46 is: 281,344,445,596.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,271,340,791.28 : 430,775,853,351.11 = 203,947,845,653.46 : x
  2. Step 2: Convert to fraction form
    312,271,340,791.28/430,775,853,351.11 = 203,947,845,653.46/x
  3. Step 3: Cross multiply
    312,271,340,791.28x = 430,775,853,351.11 × 203,947,845,653.46
  4. Step 4: Simplify right side
    312,271,340,791.28x = 87,855,807,250,489,688,457,216
  5. Step 5: Solve for x
    x = 87,855,807,250,489,688,457,216/312,271,340,791.28
  6. Step 6: Final answer
    x = 281,344,445,596.15

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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.