Home / 1,319,715,456.60-1,821,004,878.06-762,690,930.60

Finding the Fourth Proportional to 1,319,715,456.60, 1,821,004,878.06 and 762,690,930.60

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Solution

The fourth proportional to 1,319,715,456.60, 1,821,004,878.06 and 762,690,930.60 is: 1,052,396,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,715,456.60 : 1,821,004,878.06 = 762,690,930.60 : x
  2. Step 2: Convert to fraction form
    1,319,715,456.60/1,821,004,878.06 = 762,690,930.60/x
  3. Step 3: Cross multiply
    1,319,715,456.60x = 1,821,004,878.06 × 762,690,930.60
  4. Step 4: Simplify right side
    1,319,715,456.60x = 1,388,863,905,074,721,024
  5. Step 5: Solve for x
    x = 1,388,863,905,074,721,024/1,319,715,456.60
  6. Step 6: Final answer
    x = 1,052,396,482.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.