Home / 20,809,139.07-28,716,400.37-11,516,727.19

Finding the Fourth Proportional to 20,809,139.07, 28,716,400.37 and 11,516,727.19

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Solution

The fourth proportional to 20,809,139.07, 28,716,400.37 and 11,516,727.19 is: 15,892,966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,139.07 : 28,716,400.37 = 11,516,727.19 : x
  2. Step 2: Convert to fraction form
    20,809,139.07/28,716,400.37 = 11,516,727.19/x
  3. Step 3: Cross multiply
    20,809,139.07x = 28,716,400.37 × 11,516,727.19
  4. Step 4: Simplify right side
    20,809,139.07x = 330,718,948,897,105.88
  5. Step 5: Solve for x
    x = 330,718,948,897,105.88/20,809,139.07
  6. Step 6: Final answer
    x = 15,892,966.44

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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.