Home / 28,608,007.80-42,878,834.10-11,557,486.20

Finding the Fourth Proportional to 28,608,007.80, 42,878,834.10 and 11,557,486.20

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Solution

The fourth proportional to 28,608,007.80, 42,878,834.10 and 11,557,486.20 is: 17,322,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,007.80 : 42,878,834.10 = 11,557,486.20 : x
  2. Step 2: Convert to fraction form
    28,608,007.80/42,878,834.10 = 11,557,486.20/x
  3. Step 3: Cross multiply
    28,608,007.80x = 42,878,834.10 × 11,557,486.20
  4. Step 4: Simplify right side
    28,608,007.80x = 495,571,533,382,839.38
  5. Step 5: Solve for x
    x = 495,571,533,382,839.38/28,608,007.80
  6. Step 6: Final answer
    x = 17,322,825.72

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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.