Home / 9,161,880.20-13,742,820.30-8,280,081.80

Finding the Fourth Proportional to 9,161,880.20, 13,742,820.30 and 8,280,081.80

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Solution

The fourth proportional to 9,161,880.20, 13,742,820.30 and 8,280,081.80 is: 12,420,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161,880.20 : 13,742,820.30 = 8,280,081.80 : x
  2. Step 2: Convert to fraction form
    9,161,880.20/13,742,820.30 = 8,280,081.80/x
  3. Step 3: Cross multiply
    9,161,880.20x = 13,742,820.30 × 8,280,081.80
  4. Step 4: Simplify right side
    9,161,880.20x = 113,791,676,246,700.55
  5. Step 5: Solve for x
    x = 113,791,676,246,700.55/9,161,880.20
  6. Step 6: Final answer
    x = 12,420,122.70

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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.