Home / 187,737,382.72-259,089,561.12-105,231,188.80

Finding the Fourth Proportional to 187,737,382.72, 259,089,561.12 and 105,231,188.80

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Solution

The fourth proportional to 187,737,382.72, 259,089,561.12 and 105,231,188.80 is: 145,225,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,737,382.72 : 259,089,561.12 = 105,231,188.80 : x
  2. Step 2: Convert to fraction form
    187,737,382.72/259,089,561.12 = 105,231,188.80/x
  3. Step 3: Cross multiply
    187,737,382.72x = 259,089,561.12 × 105,231,188.80
  4. Step 4: Simplify right side
    187,737,382.72x = 27,264,302,522,327,860
  5. Step 5: Solve for x
    x = 27,264,302,522,327,860/187,737,382.72
  6. Step 6: Final answer
    x = 145,225,751.67

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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.