Home / 12,479,824.80-18,722,458.80-7,091,056.80

Finding the Fourth Proportional to 12,479,824.80, 18,722,458.80 and 7,091,056.80

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Solution

The fourth proportional to 12,479,824.80, 18,722,458.80 and 7,091,056.80 is: 10,638,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,824.80 : 18,722,458.80 = 7,091,056.80 : x
  2. Step 2: Convert to fraction form
    12,479,824.80/18,722,458.80 = 7,091,056.80/x
  3. Step 3: Cross multiply
    12,479,824.80x = 18,722,458.80 × 7,091,056.80
  4. Step 4: Simplify right side
    12,479,824.80x = 132,762,018,786,459.84
  5. Step 5: Solve for x
    x = 132,762,018,786,459.84/12,479,824.80
  6. Step 6: Final answer
    x = 10,638,131.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.