Home / 777,413,145.15-1,067,119,511.15-687,333,895.65

Finding the Fourth Proportional to 777,413,145.15, 1,067,119,511.15 and 687,333,895.65

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Solution

The fourth proportional to 777,413,145.15, 1,067,119,511.15 and 687,333,895.65 is: 943,471,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,413,145.15 : 1,067,119,511.15 = 687,333,895.65 : x
  2. Step 2: Convert to fraction form
    777,413,145.15/1,067,119,511.15 = 687,333,895.65/x
  3. Step 3: Cross multiply
    777,413,145.15x = 1,067,119,511.15 × 687,333,895.65
  4. Step 4: Simplify right side
    777,413,145.15x = 733,467,410,724,571,392
  5. Step 5: Solve for x
    x = 733,467,410,724,571,392/777,413,145.15
  6. Step 6: Final answer
    x = 943,471,840.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.