Home / 20,627,521.72-28,464,311.10-11,926,252.60

Finding the Fourth Proportional to 20,627,521.72, 28,464,311.10 and 11,926,252.60

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Solution

The fourth proportional to 20,627,521.72, 28,464,311.10 and 11,926,252.60 is: 16,457,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627,521.72 : 28,464,311.10 = 11,926,252.60 : x
  2. Step 2: Convert to fraction form
    20,627,521.72/28,464,311.10 = 11,926,252.60/x
  3. Step 3: Cross multiply
    20,627,521.72x = 28,464,311.10 × 11,926,252.60
  4. Step 4: Simplify right side
    20,627,521.72x = 339,472,564,263,583.88
  5. Step 5: Solve for x
    x = 339,472,564,263,583.88/20,627,521.72
  6. Step 6: Final answer
    x = 16,457,263.69

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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.