Home / 12,664,812.30-18,995,760.45-3,689,364.30

Finding the Fourth Proportional to 12,664,812.30, 18,995,760.45 and 3,689,364.30

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Solution

The fourth proportional to 12,664,812.30, 18,995,760.45 and 3,689,364.30 is: 5,533,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664,812.30 : 18,995,760.45 = 3,689,364.30 : x
  2. Step 2: Convert to fraction form
    12,664,812.30/18,995,760.45 = 3,689,364.30/x
  3. Step 3: Cross multiply
    12,664,812.30x = 18,995,760.45 × 3,689,364.30
  4. Step 4: Simplify right side
    12,664,812.30x = 70,082,280,455,581.93
  5. Step 5: Solve for x
    x = 70,082,280,455,581.93/12,664,812.30
  6. Step 6: Final answer
    x = 5,533,621.72

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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.