Home / 20,702,169.98-28,567,828.93-11,409,711.31

Finding the Fourth Proportional to 20,702,169.98, 28,567,828.93 and 11,409,711.31

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Solution

The fourth proportional to 20,702,169.98, 28,567,828.93 and 11,409,711.31 is: 15,744,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,169.98 : 28,567,828.93 = 11,409,711.31 : x
  2. Step 2: Convert to fraction form
    20,702,169.98/28,567,828.93 = 11,409,711.31/x
  3. Step 3: Cross multiply
    20,702,169.98x = 28,567,828.93 × 11,409,711.31
  4. Step 4: Simplify right side
    20,702,169.98x = 325,950,680,809,585
  5. Step 5: Solve for x
    x = 325,950,680,809,585/20,702,169.98
  6. Step 6: Final answer
    x = 15,744,759.18

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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.