Home / 691,216,993.22-1,036,826,487.72-282,273,143.72

Finding the Fourth Proportional to 691,216,993.22, 1,036,826,487.72 and 282,273,143.72

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Solution

The fourth proportional to 691,216,993.22, 1,036,826,487.72 and 282,273,143.72 is: 423,410,123.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,216,993.22 : 1,036,826,487.72 = 282,273,143.72 : x
  2. Step 2: Convert to fraction form
    691,216,993.22/1,036,826,487.72 = 282,273,143.72/x
  3. Step 3: Cross multiply
    691,216,993.22x = 1,036,826,487.72 × 282,273,143.72
  4. Step 4: Simplify right side
    691,216,993.22x = 292,668,272,179,479,040
  5. Step 5: Solve for x
    x = 292,668,272,179,479,040/691,216,993.22
  6. Step 6: Final answer
    x = 423,410,123.09

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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.