Home / 120,077,582.66-165,707,205.84-65,073,439.16

Finding the Fourth Proportional to 120,077,582.66, 165,707,205.84 and 65,073,439.16

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Solution

The fourth proportional to 120,077,582.66, 165,707,205.84 and 65,073,439.16 is: 89,801,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077,582.66 : 165,707,205.84 = 65,073,439.16 : x
  2. Step 2: Convert to fraction form
    120,077,582.66/165,707,205.84 = 65,073,439.16/x
  3. Step 3: Cross multiply
    120,077,582.66x = 165,707,205.84 × 65,073,439.16
  4. Step 4: Simplify right side
    120,077,582.66x = 10,783,137,777,602,836
  5. Step 5: Solve for x
    x = 10,783,137,777,602,836/120,077,582.66
  6. Step 6: Final answer
    x = 89,801,422.87

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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.