Home / 19,820,453.70-29,721,823.20-7,685,884.20

Finding the Fourth Proportional to 19,820,453.70, 29,721,823.20 and 7,685,884.20

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Solution

The fourth proportional to 19,820,453.70, 29,721,823.20 and 7,685,884.20 is: 11,525,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820,453.70 : 29,721,823.20 = 7,685,884.20 : x
  2. Step 2: Convert to fraction form
    19,820,453.70/29,721,823.20 = 7,685,884.20/x
  3. Step 3: Cross multiply
    19,820,453.70x = 29,721,823.20 × 7,685,884.20
  4. Step 4: Simplify right side
    19,820,453.70x = 228,438,491,328,073.44
  5. Step 5: Solve for x
    x = 228,438,491,328,073.44/19,820,453.70
  6. Step 6: Final answer
    x = 11,525,391.64

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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.