Home / 15,686,439.22-21,647,811.20-8,717,410.53

Finding the Fourth Proportional to 15,686,439.22, 21,647,811.20 and 8,717,410.53

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Solution

The fourth proportional to 15,686,439.22, 21,647,811.20 and 8,717,410.53 is: 12,030,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,439.22 : 21,647,811.20 = 8,717,410.53 : x
  2. Step 2: Convert to fraction form
    15,686,439.22/21,647,811.20 = 8,717,410.53/x
  3. Step 3: Cross multiply
    15,686,439.22x = 21,647,811.20 × 8,717,410.53
  4. Step 4: Simplify right side
    15,686,439.22x = 188,712,857,262,744.88
  5. Step 5: Solve for x
    x = 188,712,857,262,744.88/15,686,439.22
  6. Step 6: Final answer
    x = 12,030,318.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.