Home / 20,813,339.46-28,721,687.72-11,521,314.84

Finding the Fourth Proportional to 20,813,339.46, 28,721,687.72 and 11,521,314.84

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Solution

The fourth proportional to 20,813,339.46, 28,721,687.72 and 11,521,314.84 is: 15,899,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813,339.46 : 28,721,687.72 = 11,521,314.84 : x
  2. Step 2: Convert to fraction form
    20,813,339.46/28,721,687.72 = 11,521,314.84/x
  3. Step 3: Cross multiply
    20,813,339.46x = 28,721,687.72 × 11,521,314.84
  4. Step 4: Simplify right side
    20,813,339.46x = 330,911,606,958,281.75
  5. Step 5: Solve for x
    x = 330,911,606,958,281.75/20,813,339.46
  6. Step 6: Final answer
    x = 15,899,015.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.