Home / 72,580,158.45-108,870,237.68-67,037,425.65

Finding the Fourth Proportional to 72,580,158.45, 108,870,237.68 and 67,037,425.65

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Solution

The fourth proportional to 72,580,158.45, 108,870,237.68 and 67,037,425.65 is: 100,556,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,158.45 : 108,870,237.68 = 67,037,425.65 : x
  2. Step 2: Convert to fraction form
    72,580,158.45/108,870,237.68 = 67,037,425.65/x
  3. Step 3: Cross multiply
    72,580,158.45x = 108,870,237.68 × 67,037,425.65
  4. Step 4: Simplify right side
    72,580,158.45x = 7,298,380,463,635,641
  5. Step 5: Solve for x
    x = 7,298,380,463,635,641/72,580,158.45
  6. Step 6: Final answer
    x = 100,556,138.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.