Home / 28,006,556.70-42,009,835.05-8,839,251.30

Finding the Fourth Proportional to 28,006,556.70, 42,009,835.05 and 8,839,251.30

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Solution

The fourth proportional to 28,006,556.70, 42,009,835.05 and 8,839,251.30 is: 13,258,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,556.70 : 42,009,835.05 = 8,839,251.30 : x
  2. Step 2: Convert to fraction form
    28,006,556.70/42,009,835.05 = 8,839,251.30/x
  3. Step 3: Cross multiply
    28,006,556.70x = 42,009,835.05 × 8,839,251.30
  4. Step 4: Simplify right side
    28,006,556.70x = 371,335,489,078,498.06
  5. Step 5: Solve for x
    x = 371,335,489,078,498.06/28,006,556.70
  6. Step 6: Final answer
    x = 13,258,876.95

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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.