Home / 122,658,945.63-169,269,345.52-66,904,363.16

Finding the Fourth Proportional to 122,658,945.63, 169,269,345.52 and 66,904,363.16

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Solution

The fourth proportional to 122,658,945.63, 169,269,345.52 and 66,904,363.16 is: 92,328,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,658,945.63 : 169,269,345.52 = 66,904,363.16 : x
  2. Step 2: Convert to fraction form
    122,658,945.63/169,269,345.52 = 66,904,363.16/x
  3. Step 3: Cross multiply
    122,658,945.63x = 169,269,345.52 × 66,904,363.16
  4. Step 4: Simplify right side
    122,658,945.63x = 11,324,857,764,525,600
  5. Step 5: Solve for x
    x = 11,324,857,764,525,600/122,658,945.63
  6. Step 6: Final answer
    x = 92,328,021.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.