Home / 21,150,721.55-31,726,191.81-9,628,130.60

Finding the Fourth Proportional to 21,150,721.55, 31,726,191.81 and 9,628,130.60

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Solution

The fourth proportional to 21,150,721.55, 31,726,191.81 and 9,628,130.60 is: 14,442,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,721.55 : 31,726,191.81 = 9,628,130.60 : x
  2. Step 2: Convert to fraction form
    21,150,721.55/31,726,191.81 = 9,628,130.60/x
  3. Step 3: Cross multiply
    21,150,721.55x = 31,726,191.81 × 9,628,130.60
  4. Step 4: Simplify right side
    21,150,721.55x = 305,463,918,187,330.38
  5. Step 5: Solve for x
    x = 305,463,918,187,330.38/21,150,721.55
  6. Step 6: Final answer
    x = 14,442,245.74

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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.