Home / 8,870,400.90-13,305,601.35-7,972,856.10

Finding the Fourth Proportional to 8,870,400.90, 13,305,601.35 and 7,972,856.10

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Solution

The fourth proportional to 8,870,400.90, 13,305,601.35 and 7,972,856.10 is: 11,959,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870,400.90 : 13,305,601.35 = 7,972,856.10 : x
  2. Step 2: Convert to fraction form
    8,870,400.90/13,305,601.35 = 7,972,856.10/x
  3. Step 3: Cross multiply
    8,870,400.90x = 13,305,601.35 × 7,972,856.10
  4. Step 4: Simplify right side
    8,870,400.90x = 106,083,644,887,515.73
  5. Step 5: Solve for x
    x = 106,083,644,887,515.73/8,870,400.90
  6. Step 6: Final answer
    x = 11,959,284.15

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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.