Home / 21,328,727.22-29,432,915.73-12,164,322.42

Finding the Fourth Proportional to 21,328,727.22, 29,432,915.73 and 12,164,322.42

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Solution

The fourth proportional to 21,328,727.22, 29,432,915.73 and 12,164,322.42 is: 16,786,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328,727.22 : 29,432,915.73 = 12,164,322.42 : x
  2. Step 2: Convert to fraction form
    21,328,727.22/29,432,915.73 = 12,164,322.42/x
  3. Step 3: Cross multiply
    21,328,727.22x = 29,432,915.73 × 12,164,322.42
  4. Step 4: Simplify right side
    21,328,727.22x = 358,031,476,700,409.69
  5. Step 5: Solve for x
    x = 358,031,476,700,409.69/21,328,727.22
  6. Step 6: Final answer
    x = 16,786,349.84

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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.