Home / 120,170,012.16-165,834,660.96-65,165,854.08

Finding the Fourth Proportional to 120,170,012.16, 165,834,660.96 and 65,165,854.08

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Solution

The fourth proportional to 120,170,012.16, 165,834,660.96 and 65,165,854.08 is: 89,928,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,170,012.16 : 165,834,660.96 = 65,165,854.08 : x
  2. Step 2: Convert to fraction form
    120,170,012.16/165,834,660.96 = 65,165,854.08/x
  3. Step 3: Cross multiply
    120,170,012.16x = 165,834,660.96 × 65,165,854.08
  4. Step 4: Simplify right side
    120,170,012.16x = 10,806,757,317,525,632
  5. Step 5: Solve for x
    x = 10,806,757,317,525,632/120,170,012.16
  6. Step 6: Final answer
    x = 89,928,902.59

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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.