Home / 122,357,371.94-168,856,654.05-66,606,387.78

Finding the Fourth Proportional to 122,357,371.94, 168,856,654.05 and 66,606,387.78

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Solution

The fourth proportional to 122,357,371.94, 168,856,654.05 and 66,606,387.78 is: 91,918,709.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,357,371.94 : 168,856,654.05 = 66,606,387.78 : x
  2. Step 2: Convert to fraction form
    122,357,371.94/168,856,654.05 = 66,606,387.78/x
  3. Step 3: Cross multiply
    122,357,371.94x = 168,856,654.05 × 66,606,387.78
  4. Step 4: Simplify right side
    122,357,371.94x = 11,246,931,778,887,608
  5. Step 5: Solve for x
    x = 11,246,931,778,887,608/122,357,371.94
  6. Step 6: Final answer
    x = 91,918,709.93

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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.