Home / 21,297,617.40-31,946,426.10-13,235,460.60

Finding the Fourth Proportional to 21,297,617.40, 31,946,426.10 and 13,235,460.60

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Solution

The fourth proportional to 21,297,617.40, 31,946,426.10 and 13,235,460.60 is: 19,853,190.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,617.40 : 31,946,426.10 = 13,235,460.60 : x
  2. Step 2: Convert to fraction form
    21,297,617.40/31,946,426.10 = 13,235,460.60/x
  3. Step 3: Cross multiply
    21,297,617.40x = 31,946,426.10 × 13,235,460.60
  4. Step 4: Simplify right side
    21,297,617.40x = 422,825,663,957,361.69
  5. Step 5: Solve for x
    x = 422,825,663,957,361.69/21,297,617.40
  6. Step 6: Final answer
    x = 19,853,190.90

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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.