Home / 120,077,546.07-165,707,155.32-65,073,402.57

Finding the Fourth Proportional to 120,077,546.07, 165,707,155.32 and 65,073,402.57

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Solution

The fourth proportional to 120,077,546.07, 165,707,155.32 and 65,073,402.57 is: 89,801,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077,546.07 : 165,707,155.32 = 65,073,402.57 : x
  2. Step 2: Convert to fraction form
    120,077,546.07/165,707,155.32 = 65,073,402.57/x
  3. Step 3: Cross multiply
    120,077,546.07x = 165,707,155.32 × 65,073,402.57
  4. Step 4: Simplify right side
    120,077,546.07x = 10,783,128,427,245,252
  5. Step 5: Solve for x
    x = 10,783,128,427,245,252/120,077,546.07
  6. Step 6: Final answer
    x = 89,801,372.36

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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.