Home / 12,922,934.40-19,384,228.80-3,947,529.60

Finding the Fourth Proportional to 12,922,934.40, 19,384,228.80 and 3,947,529.60

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Solution

The fourth proportional to 12,922,934.40, 19,384,228.80 and 3,947,529.60 is: 5,921,241.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,934.40 : 19,384,228.80 = 3,947,529.60 : x
  2. Step 2: Convert to fraction form
    12,922,934.40/19,384,228.80 = 3,947,529.60/x
  3. Step 3: Cross multiply
    12,922,934.40x = 19,384,228.80 × 3,947,529.60
  4. Step 4: Simplify right side
    12,922,934.40x = 76,519,816,961,172.48
  5. Step 5: Solve for x
    x = 76,519,816,961,172.48/12,922,934.40
  6. Step 6: Final answer
    x = 5,921,241.62

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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.