Home / 28,280,351,940.87-39,028,627,660.31-15,593,048,371.47

Finding the Fourth Proportional to 28,280,351,940.87, 39,028,627,660.31 and 15,593,048,371.47

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Solution

The fourth proportional to 28,280,351,940.87, 39,028,627,660.31 and 15,593,048,371.47 is: 21,519,367,236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280,351,940.87 : 39,028,627,660.31 = 15,593,048,371.47 : x
  2. Step 2: Convert to fraction form
    28,280,351,940.87/39,028,627,660.31 = 15,593,048,371.47/x
  3. Step 3: Cross multiply
    28,280,351,940.87x = 39,028,627,660.31 × 15,593,048,371.47
  4. Step 4: Simplify right side
    28,280,351,940.87x = 608,575,278,979,297,968,128
  5. Step 5: Solve for x
    x = 608,575,278,979,297,968,128/28,280,351,940.87
  6. Step 6: Final answer
    x = 21,519,367,236.02

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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.