Home / 20,188,842.59-27,860,461.05-11,021,485.34

Finding the Fourth Proportional to 20,188,842.59, 27,860,461.05 and 11,021,485.34

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Solution

The fourth proportional to 20,188,842.59, 27,860,461.05 and 11,021,485.34 is: 15,209,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,842.59 : 27,860,461.05 = 11,021,485.34 : x
  2. Step 2: Convert to fraction form
    20,188,842.59/27,860,461.05 = 11,021,485.34/x
  3. Step 3: Cross multiply
    20,188,842.59x = 27,860,461.05 × 11,021,485.34
  4. Step 4: Simplify right side
    20,188,842.59x = 307,063,663,028,216
  5. Step 5: Solve for x
    x = 307,063,663,028,216/20,188,842.59
  6. Step 6: Final answer
    x = 15,209,572.40

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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.