Home / 979,019,481.90-1,465,128,000.45-897,390,144.30

Finding the Fourth Proportional to 979,019,481.90, 1,465,128,000.45 and 897,390,144.30

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Solution

The fourth proportional to 979,019,481.90, 1,465,128,000.45 and 897,390,144.30 is: 1,342,967,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,019,481.90 : 1,465,128,000.45 = 897,390,144.30 : x
  2. Step 2: Convert to fraction form
    979,019,481.90/1,465,128,000.45 = 897,390,144.30/x
  3. Step 3: Cross multiply
    979,019,481.90x = 1,465,128,000.45 × 897,390,144.30
  4. Step 4: Simplify right side
    979,019,481.90x = 1,314,791,427,741,795,840
  5. Step 5: Solve for x
    x = 1,314,791,427,741,795,840/979,019,481.90
  6. Step 6: Final answer
    x = 1,342,967,583.43

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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.