Home / 9,161,806.20-13,742,709.30-8,280,007.80

Finding the Fourth Proportional to 9,161,806.20, 13,742,709.30 and 8,280,007.80

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Solution

The fourth proportional to 9,161,806.20, 13,742,709.30 and 8,280,007.80 is: 12,420,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161,806.20 : 13,742,709.30 = 8,280,007.80 : x
  2. Step 2: Convert to fraction form
    9,161,806.20/13,742,709.30 = 8,280,007.80/x
  3. Step 3: Cross multiply
    9,161,806.20x = 13,742,709.30 × 8,280,007.80
  4. Step 4: Simplify right side
    9,161,806.20x = 113,789,740,197,132.55
  5. Step 5: Solve for x
    x = 113,789,740,197,132.55/9,161,806.20
  6. Step 6: Final answer
    x = 12,420,011.70

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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.