Home / 12,008,584.78-18,013,984.51-3,921,602.80

Finding the Fourth Proportional to 12,008,584.78, 18,013,984.51 and 3,921,602.80

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Solution

The fourth proportional to 12,008,584.78, 18,013,984.51 and 3,921,602.80 is: 5,882,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008,584.78 : 18,013,984.51 = 3,921,602.80 : x
  2. Step 2: Convert to fraction form
    12,008,584.78/18,013,984.51 = 3,921,602.80/x
  3. Step 3: Cross multiply
    12,008,584.78x = 18,013,984.51 × 3,921,602.80
  4. Step 4: Simplify right side
    12,008,584.78x = 70,643,692,038,733.66
  5. Step 5: Solve for x
    x = 70,643,692,038,733.66/12,008,584.78
  6. Step 6: Final answer
    x = 5,882,765.82

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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.