Home / 920,252,495.70-1,380,378,743.55-714,667,497.30

Finding the Fourth Proportional to 920,252,495.70, 1,380,378,743.55 and 714,667,497.30

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Solution

The fourth proportional to 920,252,495.70, 1,380,378,743.55 and 714,667,497.30 is: 1,072,001,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,252,495.70 : 1,380,378,743.55 = 714,667,497.30 : x
  2. Step 2: Convert to fraction form
    920,252,495.70/1,380,378,743.55 = 714,667,497.30/x
  3. Step 3: Cross multiply
    920,252,495.70x = 1,380,378,743.55 × 714,667,497.30
  4. Step 4: Simplify right side
    920,252,495.70x = 986,511,821,978,996,864
  5. Step 5: Solve for x
    x = 986,511,821,978,996,864/920,252,495.70
  6. Step 6: Final answer
    x = 1,072,001,245.95

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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.