Home / 120,077,579.58-165,707,201.49-65,073,436.08

Finding the Fourth Proportional to 120,077,579.58, 165,707,201.49 and 65,073,436.08

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Solution

The fourth proportional to 120,077,579.58, 165,707,201.49 and 65,073,436.08 is: 89,801,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077,579.58 : 165,707,201.49 = 65,073,436.08 : x
  2. Step 2: Convert to fraction form
    120,077,579.58/165,707,201.49 = 65,073,436.08/x
  3. Step 3: Cross multiply
    120,077,579.58x = 165,707,201.49 × 65,073,436.08
  4. Step 4: Simplify right side
    120,077,579.58x = 10,783,136,984,155,196
  5. Step 5: Solve for x
    x = 10,783,136,984,155,196/120,077,579.58
  6. Step 6: Final answer
    x = 89,801,418.57

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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.