Home / 20,771,861.10-28,665,257.26-11,352,842.34

Finding the Fourth Proportional to 20,771,861.10, 28,665,257.26 and 11,352,842.34

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Solution

The fourth proportional to 20,771,861.10, 28,665,257.26 and 11,352,842.34 is: 15,666,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,861.10 : 28,665,257.26 = 11,352,842.34 : x
  2. Step 2: Convert to fraction form
    20,771,861.10/28,665,257.26 = 11,352,842.34/x
  3. Step 3: Cross multiply
    20,771,861.10x = 28,665,257.26 × 11,352,842.34
  4. Step 4: Simplify right side
    20,771,861.10x = 325,432,146,354,972.19
  5. Step 5: Solve for x
    x = 325,432,146,354,972.19/20,771,861.10
  6. Step 6: Final answer
    x = 15,666,971.05

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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.