Home / 14,138,333.85-21,187,728.53-7,647,390.96

Finding the Fourth Proportional to 14,138,333.85, 21,187,728.53 and 7,647,390.96

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Solution

The fourth proportional to 14,138,333.85, 21,187,728.53 and 7,647,390.96 is: 11,460,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138,333.85 : 21,187,728.53 = 7,647,390.96 : x
  2. Step 2: Convert to fraction form
    14,138,333.85/21,187,728.53 = 7,647,390.96/x
  3. Step 3: Cross multiply
    14,138,333.85x = 21,187,728.53 × 7,647,390.96
  4. Step 4: Simplify right side
    14,138,333.85x = 162,030,843,585,019.12
  5. Step 5: Solve for x
    x = 162,030,843,585,019.12/14,138,333.85
  6. Step 6: Final answer
    x = 11,460,391.68

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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.