Home / 1,368,597,801.20-2,048,865,623.40-1,288,872,028.40

Finding the Fourth Proportional to 1,368,597,801.20, 2,048,865,623.40 and 1,288,872,028.40

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Solution

The fourth proportional to 1,368,597,801.20, 2,048,865,623.40 and 1,288,872,028.40 is: 1,929,511,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,597,801.20 : 2,048,865,623.40 = 1,288,872,028.40 : x
  2. Step 2: Convert to fraction form
    1,368,597,801.20/2,048,865,623.40 = 1,288,872,028.40/x
  3. Step 3: Cross multiply
    1,368,597,801.20x = 2,048,865,623.40 × 1,288,872,028.40
  4. Step 4: Simplify right side
    1,368,597,801.20x = 2,640,725,591,950,588,928
  5. Step 5: Solve for x
    x = 2,640,725,591,950,588,928/1,368,597,801.20
  6. Step 6: Final answer
    x = 1,929,511,789.10

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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.