Home / 28,114,764,661.56-38,798,268,799.86-15,427,712,640.36

Finding the Fourth Proportional to 28,114,764,661.56, 38,798,268,799.86 and 15,427,712,640.36

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Solution

The fourth proportional to 28,114,764,661.56, 38,798,268,799.86 and 15,427,712,640.36 is: 21,290,185,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114,764,661.56 : 38,798,268,799.86 = 15,427,712,640.36 : x
  2. Step 2: Convert to fraction form
    28,114,764,661.56/38,798,268,799.86 = 15,427,712,640.36/x
  3. Step 3: Cross multiply
    28,114,764,661.56x = 38,798,268,799.86 × 15,427,712,640.36
  4. Step 4: Simplify right side
    28,114,764,661.56x = 598,568,541,987,685,138,432
  5. Step 5: Solve for x
    x = 598,568,541,987,685,138,432/28,114,764,661.56
  6. Step 6: Final answer
    x = 21,290,185,039.54

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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.