Home / 20,036,821.87-27,650,867.42-10,869,464.62

Finding the Fourth Proportional to 20,036,821.87, 27,650,867.42 and 10,869,464.62

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Solution

The fourth proportional to 20,036,821.87, 27,650,867.42 and 10,869,464.62 is: 14,999,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036,821.87 : 27,650,867.42 = 10,869,464.62 : x
  2. Step 2: Convert to fraction form
    20,036,821.87/27,650,867.42 = 10,869,464.62/x
  3. Step 3: Cross multiply
    20,036,821.87x = 27,650,867.42 × 10,869,464.62
  4. Step 4: Simplify right side
    20,036,821.87x = 300,550,125,134,597.19
  5. Step 5: Solve for x
    x = 300,550,125,134,597.19/20,036,821.87
  6. Step 6: Final answer
    x = 14,999,890.06

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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.