Home / 21,619,806.48-29,834,441.90-12,922,774.12

Finding the Fourth Proportional to 21,619,806.48, 29,834,441.90 and 12,922,774.12

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Solution

The fourth proportional to 21,619,806.48, 29,834,441.90 and 12,922,774.12 is: 17,832,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619,806.48 : 29,834,441.90 = 12,922,774.12 : x
  2. Step 2: Convert to fraction form
    21,619,806.48/29,834,441.90 = 12,922,774.12/x
  3. Step 3: Cross multiply
    21,619,806.48x = 29,834,441.90 × 12,922,774.12
  4. Step 4: Simplify right side
    21,619,806.48x = 385,543,753,669,963.56
  5. Step 5: Solve for x
    x = 385,543,753,669,963.56/21,619,806.48
  6. Step 6: Final answer
    x = 17,832,895.68

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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.