Home / 28,085,493.78-38,757,971.97-15,208,437.78

Finding the Fourth Proportional to 28,085,493.78, 38,757,971.97 and 15,208,437.78

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Solution

The fourth proportional to 28,085,493.78, 38,757,971.97 and 15,208,437.78 is: 20,987,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,493.78 : 38,757,971.97 = 15,208,437.78 : x
  2. Step 2: Convert to fraction form
    28,085,493.78/38,757,971.97 = 15,208,437.78/x
  3. Step 3: Cross multiply
    28,085,493.78x = 38,757,971.97 × 15,208,437.78
  4. Step 4: Simplify right side
    28,085,493.78x = 589,448,205,184,729
  5. Step 5: Solve for x
    x = 589,448,205,184,729/28,085,493.78
  6. Step 6: Final answer
    x = 20,987,639.02

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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.