Home / 140,217,359.25-193,496,390.96-78,338,162.55

Finding the Fourth Proportional to 140,217,359.25, 193,496,390.96 and 78,338,162.55

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Solution

The fourth proportional to 140,217,359.25, 193,496,390.96 and 78,338,162.55 is: 108,104,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,217,359.25 : 193,496,390.96 = 78,338,162.55 : x
  2. Step 2: Convert to fraction form
    140,217,359.25/193,496,390.96 = 78,338,162.55/x
  3. Step 3: Cross multiply
    140,217,359.25x = 193,496,390.96 × 78,338,162.55
  4. Step 4: Simplify right side
    140,217,359.25x = 15,158,151,727,471,140
  5. Step 5: Solve for x
    x = 15,158,151,727,471,140/140,217,359.25
  6. Step 6: Final answer
    x = 108,104,672.69

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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.