Home / 930,708,098.91-1,284,376,863.21-513,027,359.37

Finding the Fourth Proportional to 930,708,098.91, 1,284,376,863.21 and 513,027,359.37

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Solution

The fourth proportional to 930,708,098.91, 1,284,376,863.21 and 513,027,359.37 is: 707,977,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,708,098.91 : 1,284,376,863.21 = 513,027,359.37 : x
  2. Step 2: Convert to fraction form
    930,708,098.91/1,284,376,863.21 = 513,027,359.37/x
  3. Step 3: Cross multiply
    930,708,098.91x = 1,284,376,863.21 × 513,027,359.37
  4. Step 4: Simplify right side
    930,708,098.91x = 658,920,470,568,550,016
  5. Step 5: Solve for x
    x = 658,920,470,568,550,016/930,708,098.91
  6. Step 6: Final answer
    x = 707,977,583.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.