Home / 21,328,738.22-29,432,930.90-12,164,333.42

Finding the Fourth Proportional to 21,328,738.22, 29,432,930.90 and 12,164,333.42

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Solution

The fourth proportional to 21,328,738.22, 29,432,930.90 and 12,164,333.42 is: 16,786,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328,738.22 : 29,432,930.90 = 12,164,333.42 : x
  2. Step 2: Convert to fraction form
    21,328,738.22/29,432,930.90 = 12,164,333.42/x
  3. Step 3: Cross multiply
    21,328,738.22x = 29,432,930.90 × 12,164,333.42
  4. Step 4: Simplify right side
    21,328,738.22x = 358,031,984,995,420.69
  5. Step 5: Solve for x
    x = 358,031,984,995,420.69/21,328,738.22
  6. Step 6: Final answer
    x = 16,786,365.01

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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.