Home / 20,661,905.72-30,992,858.40-7,532,308.28

Finding the Fourth Proportional to 20,661,905.72, 30,992,858.40 and 7,532,308.28

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Solution

The fourth proportional to 20,661,905.72, 30,992,858.40 and 7,532,308.28 is: 11,298,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661,905.72 : 30,992,858.40 = 7,532,308.28 : x
  2. Step 2: Convert to fraction form
    20,661,905.72/30,992,858.40 = 7,532,308.28/x
  3. Step 3: Cross multiply
    20,661,905.72x = 30,992,858.40 × 7,532,308.28
  4. Step 4: Simplify right side
    20,661,905.72x = 233,447,763,947,187.56
  5. Step 5: Solve for x
    x = 233,447,763,947,187.56/20,661,905.72
  6. Step 6: Final answer
    x = 11,298,462.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.