Home / 5,425,769.20-8,139,949.80-1,639,289.20

Finding the Fourth Proportional to 5,425,769.20, 8,139,949.80 and 1,639,289.20

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Solution

The fourth proportional to 5,425,769.20, 8,139,949.80 and 1,639,289.20 is: 2,459,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425,769.20 : 8,139,949.80 = 1,639,289.20 : x
  2. Step 2: Convert to fraction form
    5,425,769.20/8,139,949.80 = 1,639,289.20/x
  3. Step 3: Cross multiply
    5,425,769.20x = 8,139,949.80 × 1,639,289.20
  4. Step 4: Simplify right side
    5,425,769.20x = 13,343,731,795,682.16
  5. Step 5: Solve for x
    x = 13,343,731,795,682.16/5,425,769.20
  6. Step 6: Final answer
    x = 2,459,325.36

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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.