Home / 13,258,786.16-19,856,278.20-8,985,990.80

Finding the Fourth Proportional to 13,258,786.16, 19,856,278.20 and 8,985,990.80

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Solution

The fourth proportional to 13,258,786.16, 19,856,278.20 and 8,985,990.80 is: 13,457,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258,786.16 : 19,856,278.20 = 8,985,990.80 : x
  2. Step 2: Convert to fraction form
    13,258,786.16/19,856,278.20 = 8,985,990.80/x
  3. Step 3: Cross multiply
    13,258,786.16x = 19,856,278.20 × 8,985,990.80
  4. Step 4: Simplify right side
    13,258,786.16x = 178,428,333,227,440.56
  5. Step 5: Solve for x
    x = 178,428,333,227,440.56/13,258,786.16
  6. Step 6: Final answer
    x = 13,457,365.63

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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.