Home / 12,638,536.32-17,441,674.62-7,410,817.92

Finding the Fourth Proportional to 12,638,536.32, 17,441,674.62 and 7,410,817.92

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Solution

The fourth proportional to 12,638,536.32, 17,441,674.62 and 7,410,817.92 is: 10,227,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,536.32 : 17,441,674.62 = 7,410,817.92 : x
  2. Step 2: Convert to fraction form
    12,638,536.32/17,441,674.62 = 7,410,817.92/x
  3. Step 3: Cross multiply
    12,638,536.32x = 17,441,674.62 × 7,410,817.92
  4. Step 4: Simplify right side
    12,638,536.32x = 129,257,074,828,705.20
  5. Step 5: Solve for x
    x = 129,257,074,828,705.20/12,638,536.32
  6. Step 6: Final answer
    x = 10,227,218.69

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Double scale
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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.