Home / 21,297,741.40-31,946,612.10-13,235,584.60

Finding the Fourth Proportional to 21,297,741.40, 31,946,612.10 and 13,235,584.60

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Solution

The fourth proportional to 21,297,741.40, 31,946,612.10 and 13,235,584.60 is: 19,853,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,741.40 : 31,946,612.10 = 13,235,584.60 : x
  2. Step 2: Convert to fraction form
    21,297,741.40/31,946,612.10 = 13,235,584.60/x
  3. Step 3: Cross multiply
    21,297,741.40x = 31,946,612.10 × 13,235,584.60
  4. Step 4: Simplify right side
    21,297,741.40x = 422,832,087,132,933.69
  5. Step 5: Solve for x
    x = 422,832,087,132,933.69/21,297,741.40
  6. Step 6: Final answer
    x = 19,853,376.90

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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.