Home / 21,308,161.28-29,408,142.54-12,017,639.48

Finding the Fourth Proportional to 21,308,161.28, 29,408,142.54 and 12,017,639.48

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Solution

The fourth proportional to 21,308,161.28, 29,408,142.54 and 12,017,639.48 is: 16,585,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,161.28 : 29,408,142.54 = 12,017,639.48 : x
  2. Step 2: Convert to fraction form
    21,308,161.28/29,408,142.54 = 12,017,639.48/x
  3. Step 3: Cross multiply
    21,308,161.28x = 29,408,142.54 × 12,017,639.48
  4. Step 4: Simplify right side
    21,308,161.28x = 353,416,454,822,171.50
  5. Step 5: Solve for x
    x = 353,416,454,822,171.50/21,308,161.28
  6. Step 6: Final answer
    x = 16,585,966.77

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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.