Home / 18,928,916-26,121,904.20-10,780,912.16

Finding the Fourth Proportional to 18,928,916, 26,121,904.20 and 10,780,912.16

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Solution

The fourth proportional to 18,928,916, 26,121,904.20 and 10,780,912.16 is: 14,877,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928,916 : 26,121,904.20 = 10,780,912.16 : x
  2. Step 2: Convert to fraction form
    18,928,916/26,121,904.20 = 10,780,912.16/x
  3. Step 3: Cross multiply
    18,928,916x = 26,121,904.20 × 10,780,912.16
  4. Step 4: Simplify right side
    18,928,916x = 281,617,954,632,135.06
  5. Step 5: Solve for x
    x = 281,617,954,632,135.06/18,928,916
  6. Step 6: Final answer
    x = 14,877,658.85

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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.