Home / 1,259,715,211.20-1,889,572,816.80-800,172,273.60

Finding the Fourth Proportional to 1,259,715,211.20, 1,889,572,816.80 and 800,172,273.60

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Solution

The fourth proportional to 1,259,715,211.20, 1,889,572,816.80 and 800,172,273.60 is: 1,200,258,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,715,211.20 : 1,889,572,816.80 = 800,172,273.60 : x
  2. Step 2: Convert to fraction form
    1,259,715,211.20/1,889,572,816.80 = 800,172,273.60/x
  3. Step 3: Cross multiply
    1,259,715,211.20x = 1,889,572,816.80 × 800,172,273.60
  4. Step 4: Simplify right side
    1,259,715,211.20x = 1,511,983,776,951,612,160
  5. Step 5: Solve for x
    x = 1,511,983,776,951,612,160/1,259,715,211.20
  6. Step 6: Final answer
    x = 1,200,258,410.40

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1.5x scale

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.