Home / 165,309,578.86-247,964,878.20-40,812,221.86

Finding the Fourth Proportional to 165,309,578.86, 247,964,878.20 and 40,812,221.86

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Solution

The fourth proportional to 165,309,578.86, 247,964,878.20 and 40,812,221.86 is: 61,218,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,309,578.86 : 247,964,878.20 = 40,812,221.86 : x
  2. Step 2: Convert to fraction form
    165,309,578.86/247,964,878.20 = 40,812,221.86/x
  3. Step 3: Cross multiply
    165,309,578.86x = 247,964,878.20 × 40,812,221.86
  4. Step 4: Simplify right side
    165,309,578.86x = 10,119,997,622,586,276
  5. Step 5: Solve for x
    x = 10,119,997,622,586,276/165,309,578.86
  6. Step 6: Final answer
    x = 61,218,458.68

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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.