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Finding the Fourth Proportional to 168,587,999.20, 252,888,997.20 and 53,569,295.20

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Solution

The fourth proportional to 168,587,999.20, 252,888,997.20 and 53,569,295.20 is: 80,356,166.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,587,999.20 : 252,888,997.20 = 53,569,295.20 : x
  2. Step 2: Convert to fraction form
    168,587,999.20/252,888,997.20 = 53,569,295.20/x
  3. Step 3: Cross multiply
    168,587,999.20x = 252,888,997.20 × 53,569,295.20
  4. Step 4: Simplify right side
    168,587,999.20x = 13,547,085,343,838,774
  5. Step 5: Solve for x
    x = 13,547,085,343,838,774/168,587,999.20
  6. Step 6: Final answer
    x = 80,356,166.56

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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.