Home / 22,129,642-30,539,445.96-12,339,990.64

Finding the Fourth Proportional to 22,129,642, 30,539,445.96 and 12,339,990.64

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Solution

The fourth proportional to 22,129,642, 30,539,445.96 and 12,339,990.64 is: 17,029,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129,642 : 30,539,445.96 = 12,339,990.64 : x
  2. Step 2: Convert to fraction form
    22,129,642/30,539,445.96 = 12,339,990.64/x
  3. Step 3: Cross multiply
    22,129,642x = 30,539,445.96 × 12,339,990.64
  4. Step 4: Simplify right side
    22,129,642x = 376,856,477,297,185.81
  5. Step 5: Solve for x
    x = 376,856,477,297,185.81/22,129,642
  6. Step 6: Final answer
    x = 17,029,488.20

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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.