Home / 218,312,999.70-327,469,499.55-109,155,018.30

Finding the Fourth Proportional to 218,312,999.70, 327,469,499.55 and 109,155,018.30

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Solution

The fourth proportional to 218,312,999.70, 327,469,499.55 and 109,155,018.30 is: 163,732,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,312,999.70 : 327,469,499.55 = 109,155,018.30 : x
  2. Step 2: Convert to fraction form
    218,312,999.70/327,469,499.55 = 109,155,018.30/x
  3. Step 3: Cross multiply
    218,312,999.70x = 327,469,499.55 × 109,155,018.30
  4. Step 4: Simplify right side
    218,312,999.70x = 35,744,939,216,072,092
  5. Step 5: Solve for x
    x = 35,744,939,216,072,092/218,312,999.70
  6. Step 6: Final answer
    x = 163,732,527.45

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1.5x scale

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.