Home / 13,787,669.84-20,690,951.16-4,812,221.84

Finding the Fourth Proportional to 13,787,669.84, 20,690,951.16 and 4,812,221.84

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Solution

The fourth proportional to 13,787,669.84, 20,690,951.16 and 4,812,221.84 is: 7,221,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787,669.84 : 20,690,951.16 = 4,812,221.84 : x
  2. Step 2: Convert to fraction form
    13,787,669.84/20,690,951.16 = 4,812,221.84/x
  3. Step 3: Cross multiply
    13,787,669.84x = 20,690,951.16 × 4,812,221.84
  4. Step 4: Simplify right side
    13,787,669.84x = 99,569,447,062,525.33
  5. Step 5: Solve for x
    x = 99,569,447,062,525.33/13,787,669.84
  6. Step 6: Final answer
    x = 7,221,629.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.