Home / 1,252,374,876.11-1,876,928,133.08-699,654,978.47

Finding the Fourth Proportional to 1,252,374,876.11, 1,876,928,133.08 and 699,654,978.47

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Solution

The fourth proportional to 1,252,374,876.11, 1,876,928,133.08 and 699,654,978.47 is: 1,048,569,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,374,876.11 : 1,876,928,133.08 = 699,654,978.47 : x
  2. Step 2: Convert to fraction form
    1,252,374,876.11/1,876,928,133.08 = 699,654,978.47/x
  3. Step 3: Cross multiply
    1,252,374,876.11x = 1,876,928,133.08 × 699,654,978.47
  4. Step 4: Simplify right side
    1,252,374,876.11x = 1,313,202,112,526,941,952
  5. Step 5: Solve for x
    x = 1,313,202,112,526,941,952/1,252,374,876.11
  6. Step 6: Final answer
    x = 1,048,569,511.88

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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.