Home / 312,271,340,787.82-430,775,853,346.39-203,947,845,650.05

Finding the Fourth Proportional to 312,271,340,787.82, 430,775,853,346.39 and 203,947,845,650.05

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Solution

The fourth proportional to 312,271,340,787.82, 430,775,853,346.39 and 203,947,845,650.05 is: 281,344,445,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,271,340,787.82 : 430,775,853,346.39 = 203,947,845,650.05 : x
  2. Step 2: Convert to fraction form
    312,271,340,787.82/430,775,853,346.39 = 203,947,845,650.05/x
  3. Step 3: Cross multiply
    312,271,340,787.82x = 430,775,853,346.39 × 203,947,845,650.05
  4. Step 4: Simplify right side
    312,271,340,787.82x = 87,855,807,248,058,116,210,688
  5. Step 5: Solve for x
    x = 87,855,807,248,058,116,210,688/312,271,340,787.82
  6. Step 6: Final answer
    x = 281,344,445,591.48

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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.