Home / 30,448,725.75-42,020,067.78-17,219,880.90

Finding the Fourth Proportional to 30,448,725.75, 42,020,067.78 and 17,219,880.90

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Solution

The fourth proportional to 30,448,725.75, 42,020,067.78 and 17,219,880.90 is: 23,763,902.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448,725.75 : 42,020,067.78 = 17,219,880.90 : x
  2. Step 2: Convert to fraction form
    30,448,725.75/42,020,067.78 = 17,219,880.90/x
  3. Step 3: Cross multiply
    30,448,725.75x = 42,020,067.78 × 17,219,880.90
  4. Step 4: Simplify right side
    30,448,725.75x = 723,580,562,581,527.38
  5. Step 5: Solve for x
    x = 723,580,562,581,527.38/30,448,725.75
  6. Step 6: Final answer
    x = 23,763,902.91

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1.5x scale

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.