Home / 18,969,026.17-28,458,866.90-7,617,446.41

Finding the Fourth Proportional to 18,969,026.17, 28,458,866.90 and 7,617,446.41

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Solution

The fourth proportional to 18,969,026.17, 28,458,866.90 and 7,617,446.41 is: 11,428,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969,026.17 : 28,458,866.90 = 7,617,446.41 : x
  2. Step 2: Convert to fraction form
    18,969,026.17/28,458,866.90 = 7,617,446.41/x
  3. Step 3: Cross multiply
    18,969,026.17x = 28,458,866.90 × 7,617,446.41
  4. Step 4: Simplify right side
    18,969,026.17x = 216,783,893,500,072.81
  5. Step 5: Solve for x
    x = 216,783,893,500,072.81/18,969,026.17
  6. Step 6: Final answer
    x = 11,428,309.05

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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.