Home / 12,886,812.88-17,783,323.50-7,085,249.44

Finding the Fourth Proportional to 12,886,812.88, 17,783,323.50 and 7,085,249.44

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Solution

The fourth proportional to 12,886,812.88, 17,783,323.50 and 7,085,249.44 is: 9,777,381.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,812.88 : 17,783,323.50 = 7,085,249.44 : x
  2. Step 2: Convert to fraction form
    12,886,812.88/17,783,323.50 = 7,085,249.44/x
  3. Step 3: Cross multiply
    12,886,812.88x = 17,783,323.50 × 7,085,249.44
  4. Step 4: Simplify right side
    12,886,812.88x = 125,999,282,869,713.84
  5. Step 5: Solve for x
    x = 125,999,282,869,713.84/12,886,812.88
  6. Step 6: Final answer
    x = 9,777,381.27

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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.