Home / 13,309,720.60-19,964,516.10-5,216,978.20

Finding the Fourth Proportional to 13,309,720.60, 19,964,516.10 and 5,216,978.20

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Solution

The fourth proportional to 13,309,720.60, 19,964,516.10 and 5,216,978.20 is: 7,825,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,720.60 : 19,964,516.10 = 5,216,978.20 : x
  2. Step 2: Convert to fraction form
    13,309,720.60/19,964,516.10 = 5,216,978.20/x
  3. Step 3: Cross multiply
    13,309,720.60x = 19,964,516.10 × 5,216,978.20
  4. Step 4: Simplify right side
    13,309,720.60x = 104,154,445,267,249.03
  5. Step 5: Solve for x
    x = 104,154,445,267,249.03/13,309,720.60
  6. Step 6: Final answer
    x = 7,825,441.90

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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.