Home / 8,178,528.30-12,267,792.45-8,122,541.10

Finding the Fourth Proportional to 8,178,528.30, 12,267,792.45 and 8,122,541.10

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Solution

The fourth proportional to 8,178,528.30, 12,267,792.45 and 8,122,541.10 is: 12,183,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,528.30 : 12,267,792.45 = 8,122,541.10 : x
  2. Step 2: Convert to fraction form
    8,178,528.30/12,267,792.45 = 8,122,541.10/x
  3. Step 3: Cross multiply
    8,178,528.30x = 12,267,792.45 × 8,122,541.10
  4. Step 4: Simplify right side
    8,178,528.30x = 99,645,648,381,394.69
  5. Step 5: Solve for x
    x = 99,645,648,381,394.69/8,178,528.30
  6. Step 6: Final answer
    x = 12,183,811.65

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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.