Home / 136,242,608.12-188,014,980.30-87,350,034.68

Finding the Fourth Proportional to 136,242,608.12, 188,014,980.30 and 87,350,034.68

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Solution

The fourth proportional to 136,242,608.12, 188,014,980.30 and 87,350,034.68 is: 120,543,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,242,608.12 : 188,014,980.30 = 87,350,034.68 : x
  2. Step 2: Convert to fraction form
    136,242,608.12/188,014,980.30 = 87,350,034.68/x
  3. Step 3: Cross multiply
    136,242,608.12x = 188,014,980.30 × 87,350,034.68
  4. Step 4: Simplify right side
    136,242,608.12x = 16,423,115,049,564,520
  5. Step 5: Solve for x
    x = 16,423,115,049,564,520/136,242,608.12
  6. Step 6: Final answer
    x = 120,543,163.96

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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.