Home / 30,448,725.25-42,020,067.09-17,219,880.40

Finding the Fourth Proportional to 30,448,725.25, 42,020,067.09 and 17,219,880.40

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Solution

The fourth proportional to 30,448,725.25, 42,020,067.09 and 17,219,880.40 is: 23,763,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448,725.25 : 42,020,067.09 = 17,219,880.40 : x
  2. Step 2: Convert to fraction form
    30,448,725.25/42,020,067.09 = 17,219,880.40/x
  3. Step 3: Cross multiply
    30,448,725.25x = 42,020,067.09 × 17,219,880.40
  4. Step 4: Simplify right side
    30,448,725.25x = 723,580,529,689,776
  5. Step 5: Solve for x
    x = 723,580,529,689,776/30,448,725.25
  6. Step 6: Final answer
    x = 23,763,902.22

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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.