Home / 28,418,240.46-39,208,219.47-17,393,496.78

Finding the Fourth Proportional to 28,418,240.46, 39,208,219.47 and 17,393,496.78

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Solution

The fourth proportional to 28,418,240.46, 39,208,219.47 and 17,393,496.78 is: 23,997,546.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418,240.46 : 39,208,219.47 = 17,393,496.78 : x
  2. Step 2: Convert to fraction form
    28,418,240.46/39,208,219.47 = 17,393,496.78/x
  3. Step 3: Cross multiply
    28,418,240.46x = 39,208,219.47 × 17,393,496.78
  4. Step 4: Simplify right side
    28,418,240.46x = 681,968,039,100,978.38
  5. Step 5: Solve for x
    x = 681,968,039,100,978.38/28,418,240.46
  6. Step 6: Final answer
    x = 23,997,546.23

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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.