Home / 19,415,867.70-29,123,801.55-18,219,141.30

Finding the Fourth Proportional to 19,415,867.70, 29,123,801.55 and 18,219,141.30

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Solution

The fourth proportional to 19,415,867.70, 29,123,801.55 and 18,219,141.30 is: 27,328,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415,867.70 : 29,123,801.55 = 18,219,141.30 : x
  2. Step 2: Convert to fraction form
    19,415,867.70/29,123,801.55 = 18,219,141.30/x
  3. Step 3: Cross multiply
    19,415,867.70x = 29,123,801.55 × 18,219,141.30
  4. Step 4: Simplify right side
    19,415,867.70x = 530,610,655,632,609.06
  5. Step 5: Solve for x
    x = 530,610,655,632,609.06/19,415,867.70
  6. Step 6: Final answer
    x = 27,328,711.95

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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.