Home / 117,909,111.14-162,715,218.89-68,378,851.46

Finding the Fourth Proportional to 117,909,111.14, 162,715,218.89 and 68,378,851.46

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Solution

The fourth proportional to 117,909,111.14, 162,715,218.89 and 68,378,851.46 is: 94,363,189.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,909,111.14 : 162,715,218.89 = 68,378,851.46 : x
  2. Step 2: Convert to fraction form
    117,909,111.14/162,715,218.89 = 68,378,851.46/x
  3. Step 3: Cross multiply
    117,909,111.14x = 162,715,218.89 × 68,378,851.46
  4. Step 4: Simplify right side
    117,909,111.14x = 11,126,279,782,760,694
  5. Step 5: Solve for x
    x = 11,126,279,782,760,694/117,909,111.14
  6. Step 6: Final answer
    x = 94,363,189.37

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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.