Home / 8,640,368.56-11,914,777.56-7,420,712.56

Finding the Fourth Proportional to 8,640,368.56, 11,914,777.56 and 7,420,712.56

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Solution

The fourth proportional to 8,640,368.56, 11,914,777.56 and 7,420,712.56 is: 10,232,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,368.56 : 11,914,777.56 = 7,420,712.56 : x
  2. Step 2: Convert to fraction form
    8,640,368.56/11,914,777.56 = 7,420,712.56/x
  3. Step 3: Cross multiply
    8,640,368.56x = 11,914,777.56 × 7,420,712.56
  4. Step 4: Simplify right side
    8,640,368.56x = 88,416,139,489,098.16
  5. Step 5: Solve for x
    x = 88,416,139,489,098.16/8,640,368.56
  6. Step 6: Final answer
    x = 10,232,912.97

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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.