Home / 13,123,511.20-19,685,266.80-5,145,335.20

Finding the Fourth Proportional to 13,123,511.20, 19,685,266.80 and 5,145,335.20

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Solution

The fourth proportional to 13,123,511.20, 19,685,266.80 and 5,145,335.20 is: 7,718,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123,511.20 : 19,685,266.80 = 5,145,335.20 : x
  2. Step 2: Convert to fraction form
    13,123,511.20/19,685,266.80 = 5,145,335.20/x
  3. Step 3: Cross multiply
    13,123,511.20x = 19,685,266.80 × 5,145,335.20
  4. Step 4: Simplify right side
    13,123,511.20x = 101,287,296,187,431.38
  5. Step 5: Solve for x
    x = 101,287,296,187,431.38/13,123,511.20
  6. Step 6: Final answer
    x = 7,718,002.80

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1.5x scale

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.