Home / 21,453,148.80-32,192,164.80-7,991,337.60

Finding the Fourth Proportional to 21,453,148.80, 32,192,164.80 and 7,991,337.60

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Solution

The fourth proportional to 21,453,148.80, 32,192,164.80 and 7,991,337.60 is: 11,991,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453,148.80 : 32,192,164.80 = 7,991,337.60 : x
  2. Step 2: Convert to fraction form
    21,453,148.80/32,192,164.80 = 7,991,337.60/x
  3. Step 3: Cross multiply
    21,453,148.80x = 32,192,164.80 × 7,991,337.60
  4. Step 4: Simplify right side
    21,453,148.80x = 257,258,456,991,636.47
  5. Step 5: Solve for x
    x = 257,258,456,991,636.47/21,453,148.80
  6. Step 6: Final answer
    x = 11,991,640.92

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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.