Home / 117,385,366.40-161,996,864.96-65,174,404.80

Finding the Fourth Proportional to 117,385,366.40, 161,996,864.96 and 65,174,404.80

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Solution

The fourth proportional to 117,385,366.40, 161,996,864.96 and 65,174,404.80 is: 89,943,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,385,366.40 : 161,996,864.96 = 65,174,404.80 : x
  2. Step 2: Convert to fraction form
    117,385,366.40/161,996,864.96 = 65,174,404.80/x
  3. Step 3: Cross multiply
    117,385,366.40x = 161,996,864.96 × 65,174,404.80
  4. Step 4: Simplify right side
    117,385,366.40x = 10,558,049,253,233,976
  5. Step 5: Solve for x
    x = 10,558,049,253,233,976/117,385,366.40
  6. Step 6: Final answer
    x = 89,943,487.65

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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.