Home / 13,872,686.22-20,786,310.06-7,388,880.06

Finding the Fourth Proportional to 13,872,686.22, 20,786,310.06 and 7,388,880.06

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Solution

The fourth proportional to 13,872,686.22, 20,786,310.06 and 7,388,880.06 is: 11,071,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872,686.22 : 20,786,310.06 = 7,388,880.06 : x
  2. Step 2: Convert to fraction form
    13,872,686.22/20,786,310.06 = 7,388,880.06/x
  3. Step 3: Cross multiply
    13,872,686.22x = 20,786,310.06 × 7,388,880.06
  4. Step 4: Simplify right side
    13,872,686.22x = 153,587,551,923,311.38
  5. Step 5: Solve for x
    x = 153,587,551,923,311.38/13,872,686.22
  6. Step 6: Final answer
    x = 11,071,219.34

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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.