Home / 12,670,815.40-19,006,223.10-12,481,858.60

Finding the Fourth Proportional to 12,670,815.40, 19,006,223.10 and 12,481,858.60

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Solution

The fourth proportional to 12,670,815.40, 19,006,223.10 and 12,481,858.60 is: 18,722,787.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670,815.40 : 19,006,223.10 = 12,481,858.60 : x
  2. Step 2: Convert to fraction form
    12,670,815.40/19,006,223.10 = 12,481,858.60/x
  3. Step 3: Cross multiply
    12,670,815.40x = 19,006,223.10 × 12,481,858.60
  4. Step 4: Simplify right side
    12,670,815.40x = 237,232,989,254,253.66
  5. Step 5: Solve for x
    x = 237,232,989,254,253.66/12,670,815.40
  6. Step 6: Final answer
    x = 18,722,787.90

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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.