Home / 118,098,009.70-177,147,014.55-72,181,507.30

Finding the Fourth Proportional to 118,098,009.70, 177,147,014.55 and 72,181,507.30

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Solution

The fourth proportional to 118,098,009.70, 177,147,014.55 and 72,181,507.30 is: 108,272,260.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,009.70 : 177,147,014.55 = 72,181,507.30 : x
  2. Step 2: Convert to fraction form
    118,098,009.70/177,147,014.55 = 72,181,507.30/x
  3. Step 3: Cross multiply
    118,098,009.70x = 177,147,014.55 × 72,181,507.30
  4. Step 4: Simplify right side
    118,098,009.70x = 12,786,738,523,914,032
  5. Step 5: Solve for x
    x = 12,786,738,523,914,032/118,098,009.70
  6. Step 6: Final answer
    x = 108,272,260.95

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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.