Home / 20,448,832.47-28,218,403.94-11,155,849.35

Finding the Fourth Proportional to 20,448,832.47, 28,218,403.94 and 11,155,849.35

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Solution

The fourth proportional to 20,448,832.47, 28,218,403.94 and 11,155,849.35 is: 15,394,534.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448,832.47 : 28,218,403.94 = 11,155,849.35 : x
  2. Step 2: Convert to fraction form
    20,448,832.47/28,218,403.94 = 11,155,849.35/x
  3. Step 3: Cross multiply
    20,448,832.47x = 28,218,403.94 × 11,155,849.35
  4. Step 4: Simplify right side
    20,448,832.47x = 314,800,263,196,307.19
  5. Step 5: Solve for x
    x = 314,800,263,196,307.19/20,448,832.47
  6. Step 6: Final answer
    x = 15,394,534.81

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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.