Home / 20,454,917.94-28,228,386.27-11,163,085.43

Finding the Fourth Proportional to 20,454,917.94, 28,228,386.27 and 11,163,085.43

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Solution

The fourth proportional to 20,454,917.94, 28,228,386.27 and 11,163,085.43 is: 15,405,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454,917.94 : 28,228,386.27 = 11,163,085.43 : x
  2. Step 2: Convert to fraction form
    20,454,917.94/28,228,386.27 = 11,163,085.43/x
  3. Step 3: Cross multiply
    20,454,917.94x = 28,228,386.27 × 11,163,085.43
  4. Step 4: Simplify right side
    20,454,917.94x = 315,115,887,341,907.12
  5. Step 5: Solve for x
    x = 315,115,887,341,907.12/20,454,917.94
  6. Step 6: Final answer
    x = 15,405,385.07

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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.