Home / 312,271,340,788.54-430,775,853,347.28-203,947,845,650.74

Finding the Fourth Proportional to 312,271,340,788.54, 430,775,853,347.28 and 203,947,845,650.74

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Solution

The fourth proportional to 312,271,340,788.54, 430,775,853,347.28 and 203,947,845,650.74 is: 281,344,445,592.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,271,340,788.54 : 430,775,853,347.28 = 203,947,845,650.74 : x
  2. Step 2: Convert to fraction form
    312,271,340,788.54/430,775,853,347.28 = 203,947,845,650.74/x
  3. Step 3: Cross multiply
    312,271,340,788.54x = 430,775,853,347.28 × 203,947,845,650.74
  4. Step 4: Simplify right side
    312,271,340,788.54x = 87,855,807,248,536,870,846,464
  5. Step 5: Solve for x
    x = 87,855,807,248,536,870,846,464/312,271,340,788.54
  6. Step 6: Final answer
    x = 281,344,445,592.37

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Double scale
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1.5x scale

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.