Home / 28,057,138,653-38,718,542,886.66-15,196,458,684.84

Finding the Fourth Proportional to 28,057,138,653, 38,718,542,886.66 and 15,196,458,684.84

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Solution

The fourth proportional to 28,057,138,653, 38,718,542,886.66 and 15,196,458,684.84 is: 20,970,945,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057,138,653 : 38,718,542,886.66 = 15,196,458,684.84 : x
  2. Step 2: Convert to fraction form
    28,057,138,653/38,718,542,886.66 = 15,196,458,684.84/x
  3. Step 3: Cross multiply
    28,057,138,653x = 38,718,542,886.66 × 15,196,458,684.84
  4. Step 4: Simplify right side
    28,057,138,653x = 588,384,737,314,334,441,472
  5. Step 5: Solve for x
    x = 588,384,737,314,334,441,472/28,057,138,653
  6. Step 6: Final answer
    x = 20,970,945,918.30

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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.