Home / 519,718,329.72-779,675,815.62-208,850,145.48

Finding the Fourth Proportional to 519,718,329.72, 779,675,815.62 and 208,850,145.48

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Solution

The fourth proportional to 519,718,329.72, 779,675,815.62 and 208,850,145.48 is: 313,314,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,718,329.72 : 779,675,815.62 = 208,850,145.48 : x
  2. Step 2: Convert to fraction form
    519,718,329.72/779,675,815.62 = 208,850,145.48/x
  3. Step 3: Cross multiply
    519,718,329.72x = 779,675,815.62 × 208,850,145.48
  4. Step 4: Simplify right side
    519,718,329.72x = 162,835,407,519,474,656
  5. Step 5: Solve for x
    x = 162,835,407,519,474,656/519,718,329.72
  6. Step 6: Final answer
    x = 313,314,728.78

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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.