Home / 165,309,572.12-247,964,868.08-40,812,215.10

Finding the Fourth Proportional to 165,309,572.12, 247,964,868.08 and 40,812,215.10

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Solution

The fourth proportional to 165,309,572.12, 247,964,868.08 and 40,812,215.10 is: 61,218,448.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,309,572.12 : 247,964,868.08 = 40,812,215.10 : x
  2. Step 2: Convert to fraction form
    165,309,572.12/247,964,868.08 = 40,812,215.10/x
  3. Step 3: Cross multiply
    165,309,572.12x = 247,964,868.08 × 40,812,215.10
  4. Step 4: Simplify right side
    165,309,572.12x = 10,119,995,533,120,022
  5. Step 5: Solve for x
    x = 10,119,995,533,120,022/165,309,572.12
  6. Step 6: Final answer
    x = 61,218,448.54

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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.