Home / 1,915,221,234.78-2,872,953,224.85-809,620,039.02

Finding the Fourth Proportional to 1,915,221,234.78, 2,872,953,224.85 and 809,620,039.02

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Solution

The fourth proportional to 1,915,221,234.78, 2,872,953,224.85 and 809,620,039.02 is: 1,214,481,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,221,234.78 : 2,872,953,224.85 = 809,620,039.02 : x
  2. Step 2: Convert to fraction form
    1,915,221,234.78/2,872,953,224.85 = 809,620,039.02/x
  3. Step 3: Cross multiply
    1,915,221,234.78x = 2,872,953,224.85 × 809,620,039.02
  4. Step 4: Simplify right side
    1,915,221,234.78x = 2,326,000,502,005,691,904
  5. Step 5: Solve for x
    x = 2,326,000,502,005,691,904/1,915,221,234.78
  6. Step 6: Final answer
    x = 1,214,481,366.31

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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.