Home / 21,328,736.22-29,432,928.15-12,164,331.42

Finding the Fourth Proportional to 21,328,736.22, 29,432,928.15 and 12,164,331.42

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Solution

The fourth proportional to 21,328,736.22, 29,432,928.15 and 12,164,331.42 is: 16,786,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328,736.22 : 29,432,928.15 = 12,164,331.42 : x
  2. Step 2: Convert to fraction form
    21,328,736.22/29,432,928.15 = 12,164,331.42/x
  3. Step 3: Cross multiply
    21,328,736.22x = 29,432,928.15 × 12,164,331.42
  4. Step 4: Simplify right side
    21,328,736.22x = 358,031,892,677,647.44
  5. Step 5: Solve for x
    x = 358,031,892,677,647.44/21,328,736.22
  6. Step 6: Final answer
    x = 16,786,362.26

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1.5x scale

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.