Home / 18,147,890.15-25,043,773.08-9,888,020.31

Finding the Fourth Proportional to 18,147,890.15, 25,043,773.08 and 9,888,020.31

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Solution

The fourth proportional to 18,147,890.15, 25,043,773.08 and 9,888,020.31 is: 13,645,296.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147,890.15 : 25,043,773.08 = 9,888,020.31 : x
  2. Step 2: Convert to fraction form
    18,147,890.15/25,043,773.08 = 9,888,020.31/x
  3. Step 3: Cross multiply
    18,147,890.15x = 25,043,773.08 × 9,888,020.31
  4. Step 4: Simplify right side
    18,147,890.15x = 247,633,336,792,386.31
  5. Step 5: Solve for x
    x = 247,633,336,792,386.31/18,147,890.15
  6. Step 6: Final answer
    x = 13,645,296.21

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1.5x scale

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.