Home / 20,188,815.25-27,860,423.26-11,021,458

Finding the Fourth Proportional to 20,188,815.25, 27,860,423.26 and 11,021,458

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Solution

The fourth proportional to 20,188,815.25, 27,860,423.26 and 11,021,458 is: 15,209,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,815.25 : 27,860,423.26 = 11,021,458 : x
  2. Step 2: Convert to fraction form
    20,188,815.25/27,860,423.26 = 11,021,458/x
  3. Step 3: Cross multiply
    20,188,815.25x = 27,860,423.26 × 11,021,458
  4. Step 4: Simplify right side
    20,188,815.25x = 307,062,484,822,313.12
  5. Step 5: Solve for x
    x = 307,062,484,822,313.12/20,188,815.25
  6. Step 6: Final answer
    x = 15,209,534.64

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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.