Home / 12,798,301.20-19,190,453.40-5,216,701.20

Finding the Fourth Proportional to 12,798,301.20, 19,190,453.40 and 5,216,701.20

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Solution

The fourth proportional to 12,798,301.20, 19,190,453.40 and 5,216,701.20 is: 7,822,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798,301.20 : 19,190,453.40 = 5,216,701.20 : x
  2. Step 2: Convert to fraction form
    12,798,301.20/19,190,453.40 = 5,216,701.20/x
  3. Step 3: Cross multiply
    12,798,301.20x = 19,190,453.40 × 5,216,701.20
  4. Step 4: Simplify right side
    12,798,301.20x = 100,110,861,280,324.08
  5. Step 5: Solve for x
    x = 100,110,861,280,324.08/12,798,301.20
  6. Step 6: Final answer
    x = 7,822,199.19

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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.