Home / 28,678,787.10-39,576,226.05-15,626,153.88

Finding the Fourth Proportional to 28,678,787.10, 39,576,226.05 and 15,626,153.88

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Solution

The fourth proportional to 28,678,787.10, 39,576,226.05 and 15,626,153.88 is: 21,563,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,787.10 : 39,576,226.05 = 15,626,153.88 : x
  2. Step 2: Convert to fraction form
    28,678,787.10/39,576,226.05 = 15,626,153.88/x
  3. Step 3: Cross multiply
    28,678,787.10x = 39,576,226.05 × 15,626,153.88
  4. Step 4: Simplify right side
    28,678,787.10x = 618,424,198,246,964.50
  5. Step 5: Solve for x
    x = 618,424,198,246,964.50/28,678,787.10
  6. Step 6: Final answer
    x = 21,563,819.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.