Home / 20,701,379.79-28,568,097.09-11,409,281.19

Finding the Fourth Proportional to 20,701,379.79, 28,568,097.09 and 11,409,281.19

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Solution

The fourth proportional to 20,701,379.79, 28,568,097.09 and 11,409,281.19 is: 15,744,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701,379.79 : 28,568,097.09 = 11,409,281.19 : x
  2. Step 2: Convert to fraction form
    20,701,379.79/28,568,097.09 = 11,409,281.19/x
  3. Step 3: Cross multiply
    20,701,379.79x = 28,568,097.09 × 11,409,281.19
  4. Step 4: Simplify right side
    20,701,379.79x = 325,941,452,763,030.75
  5. Step 5: Solve for x
    x = 325,941,452,763,030.75/20,701,379.79
  6. Step 6: Final answer
    x = 15,744,914.40

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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.