Home / 122,207,872.63-168,650,060.46-66,456,553.72

Finding the Fourth Proportional to 122,207,872.63, 168,650,060.46 and 66,456,553.72

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Solution

The fourth proportional to 122,207,872.63, 168,650,060.46 and 66,456,553.72 is: 91,711,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,207,872.63 : 168,650,060.46 = 66,456,553.72 : x
  2. Step 2: Convert to fraction form
    122,207,872.63/168,650,060.46 = 66,456,553.72/x
  3. Step 3: Cross multiply
    122,207,872.63x = 168,650,060.46 × 66,456,553.72
  4. Step 4: Simplify right side
    122,207,872.63x = 11,207,901,802,841,238
  5. Step 5: Solve for x
    x = 11,207,901,802,841,238/122,207,872.63
  6. Step 6: Final answer
    x = 91,711,782.25

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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.