Home / 21,308,177.76-29,408,165.28-12,017,656

Finding the Fourth Proportional to 21,308,177.76, 29,408,165.28 and 12,017,656

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Solution

The fourth proportional to 21,308,177.76, 29,408,165.28 and 12,017,656 is: 16,585,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,177.76 : 29,408,165.28 = 12,017,656 : x
  2. Step 2: Convert to fraction form
    21,308,177.76/29,408,165.28 = 12,017,656/x
  3. Step 3: Cross multiply
    21,308,177.76x = 29,408,165.28 × 12,017,656
  4. Step 4: Simplify right side
    21,308,177.76x = 353,417,213,926,183.69
  5. Step 5: Solve for x
    x = 353,417,213,926,183.69/21,308,177.76
  6. Step 6: Final answer
    x = 16,585,989.56

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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.