Home / 12,479,883.55-18,719,825.67-3,381,980.81

Finding the Fourth Proportional to 12,479,883.55, 18,719,825.67 and 3,381,980.81

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Solution

The fourth proportional to 12,479,883.55, 18,719,825.67 and 3,381,980.81 is: 5,072,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,883.55 : 18,719,825.67 = 3,381,980.81 : x
  2. Step 2: Convert to fraction form
    12,479,883.55/18,719,825.67 = 3,381,980.81/x
  3. Step 3: Cross multiply
    12,479,883.55x = 18,719,825.67 × 3,381,980.81
  4. Step 4: Simplify right side
    12,479,883.55x = 63,310,091,085,403.93
  5. Step 5: Solve for x
    x = 63,310,091,085,403.93/12,479,883.55
  6. Step 6: Final answer
    x = 5,072,971.30

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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.