Home / 120,077,586.72-165,707,211.36-65,073,443.22

Finding the Fourth Proportional to 120,077,586.72, 165,707,211.36 and 65,073,443.22

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Solution

The fourth proportional to 120,077,586.72, 165,707,211.36 and 65,073,443.22 is: 89,801,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077,586.72 : 165,707,211.36 = 65,073,443.22 : x
  2. Step 2: Convert to fraction form
    120,077,586.72/165,707,211.36 = 65,073,443.22/x
  3. Step 3: Cross multiply
    120,077,586.72x = 165,707,211.36 × 65,073,443.22
  4. Step 4: Simplify right side
    120,077,586.72x = 10,783,138,809,579,500
  5. Step 5: Solve for x
    x = 10,783,138,809,579,500/120,077,586.72
  6. Step 6: Final answer
    x = 89,801,428.43

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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.