Home / 813,067,837.08-1,219,628,069.68-387,064,067.28

Finding the Fourth Proportional to 813,067,837.08, 1,219,628,069.68 and 387,064,067.28

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Solution

The fourth proportional to 813,067,837.08, 1,219,628,069.68 and 387,064,067.28 is: 580,608,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,067,837.08 : 1,219,628,069.68 = 387,064,067.28 : x
  2. Step 2: Convert to fraction form
    813,067,837.08/1,219,628,069.68 = 387,064,067.28/x
  3. Step 3: Cross multiply
    813,067,837.08x = 1,219,628,069.68 × 387,064,067.28
  4. Step 4: Simplify right side
    813,067,837.08x = 472,074,201,219,196,032
  5. Step 5: Solve for x
    x = 472,074,201,219,196,032/813,067,837.08
  6. Step 6: Final answer
    x = 580,608,627.83

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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.