Home / 19,215,580.28-28,818,843-7,078,451.72

Finding the Fourth Proportional to 19,215,580.28, 28,818,843 and 7,078,451.72

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Solution

The fourth proportional to 19,215,580.28, 28,818,843 and 7,078,451.72 is: 10,616,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215,580.28 : 28,818,843 = 7,078,451.72 : x
  2. Step 2: Convert to fraction form
    19,215,580.28/28,818,843 = 7,078,451.72/x
  3. Step 3: Cross multiply
    19,215,580.28x = 28,818,843 × 7,078,451.72
  4. Step 4: Simplify right side
    19,215,580.28x = 203,992,788,801,759.94
  5. Step 5: Solve for x
    x = 203,992,788,801,759.94/19,215,580.28
  6. Step 6: Final answer
    x = 10,616,009.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.