Home / 691,216,992.72-1,036,826,486.97-282,273,143.22

Finding the Fourth Proportional to 691,216,992.72, 1,036,826,486.97 and 282,273,143.22

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Solution

The fourth proportional to 691,216,992.72, 1,036,826,486.97 and 282,273,143.22 is: 423,410,122.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,216,992.72 : 1,036,826,486.97 = 282,273,143.22 : x
  2. Step 2: Convert to fraction form
    691,216,992.72/1,036,826,486.97 = 282,273,143.22/x
  3. Step 3: Cross multiply
    691,216,992.72x = 1,036,826,486.97 × 282,273,143.22
  4. Step 4: Simplify right side
    691,216,992.72x = 292,668,271,449,699,648
  5. Step 5: Solve for x
    x = 292,668,271,449,699,648/691,216,992.72
  6. Step 6: Final answer
    x = 423,410,122.34

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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.