Home / 12,887,222-17,783,911.14-7,085,963.12

Finding the Fourth Proportional to 12,887,222, 17,783,911.14 and 7,085,963.12

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Solution

The fourth proportional to 12,887,222, 17,783,911.14 and 7,085,963.12 is: 9,778,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,222 : 17,783,911.14 = 7,085,963.12 : x
  2. Step 2: Convert to fraction form
    12,887,222/17,783,911.14 = 7,085,963.12/x
  3. Step 3: Cross multiply
    12,887,222x = 17,783,911.14 × 7,085,963.12
  4. Step 4: Simplify right side
    12,887,222x = 126,016,138,467,397.16
  5. Step 5: Solve for x
    x = 126,016,138,467,397.16/12,887,222
  6. Step 6: Final answer
    x = 9,778,378.81

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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.