Home / 20,723,999.70-31,085,999.55-11,766,047.70

Finding the Fourth Proportional to 20,723,999.70, 31,085,999.55 and 11,766,047.70

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Solution

The fourth proportional to 20,723,999.70, 31,085,999.55 and 11,766,047.70 is: 17,649,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,999.70 : 31,085,999.55 = 11,766,047.70 : x
  2. Step 2: Convert to fraction form
    20,723,999.70/31,085,999.55 = 11,766,047.70/x
  3. Step 3: Cross multiply
    20,723,999.70x = 31,085,999.55 × 11,766,047.70
  4. Step 4: Simplify right side
    20,723,999.70x = 365,759,353,507,478.50
  5. Step 5: Solve for x
    x = 365,759,353,507,478.50/20,723,999.70
  6. Step 6: Final answer
    x = 17,649,071.55

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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.