Home / 28,006,474.70-42,009,712.05-8,839,169.30

Finding the Fourth Proportional to 28,006,474.70, 42,009,712.05 and 8,839,169.30

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Solution

The fourth proportional to 28,006,474.70, 42,009,712.05 and 8,839,169.30 is: 13,258,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,474.70 : 42,009,712.05 = 8,839,169.30 : x
  2. Step 2: Convert to fraction form
    28,006,474.70/42,009,712.05 = 8,839,169.30/x
  3. Step 3: Cross multiply
    28,006,474.70x = 42,009,712.05 × 8,839,169.30
  4. Step 4: Simplify right side
    28,006,474.70x = 371,330,957,054,200.06
  5. Step 5: Solve for x
    x = 371,330,957,054,200.06/28,006,474.70
  6. Step 6: Final answer
    x = 13,258,753.95

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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.