Home / 20,724,445.96-28,599,230.28-11,431,812.57

Finding the Fourth Proportional to 20,724,445.96, 28,599,230.28 and 11,431,812.57

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Solution

The fourth proportional to 20,724,445.96, 28,599,230.28 and 11,431,812.57 is: 15,775,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,445.96 : 28,599,230.28 = 11,431,812.57 : x
  2. Step 2: Convert to fraction form
    20,724,445.96/28,599,230.28 = 11,431,812.57/x
  3. Step 3: Cross multiply
    20,724,445.96x = 28,599,230.28 × 11,431,812.57
  4. Step 4: Simplify right side
    20,724,445.96x = 326,941,040,250,097.94
  5. Step 5: Solve for x
    x = 326,941,040,250,097.94/20,724,445.96
  6. Step 6: Final answer
    x = 15,775,622.70

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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.