Home / 21,297,740.40-31,946,610.60-13,235,583.60

Finding the Fourth Proportional to 21,297,740.40, 31,946,610.60 and 13,235,583.60

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Solution

The fourth proportional to 21,297,740.40, 31,946,610.60 and 13,235,583.60 is: 19,853,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,740.40 : 31,946,610.60 = 13,235,583.60 : x
  2. Step 2: Convert to fraction form
    21,297,740.40/31,946,610.60 = 13,235,583.60/x
  3. Step 3: Cross multiply
    21,297,740.40x = 31,946,610.60 × 13,235,583.60
  4. Step 4: Simplify right side
    21,297,740.40x = 422,832,035,332,946.19
  5. Step 5: Solve for x
    x = 422,832,035,332,946.19/21,297,740.40
  6. Step 6: Final answer
    x = 19,853,375.40

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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.