Home / 157,308,333.89-217,098,429.47-86,757,745.97

Finding the Fourth Proportional to 157,308,333.89, 217,098,429.47 and 86,757,745.97

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Solution

The fourth proportional to 157,308,333.89, 217,098,429.47 and 86,757,745.97 is: 119,732,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,308,333.89 : 217,098,429.47 = 86,757,745.97 : x
  2. Step 2: Convert to fraction form
    157,308,333.89/217,098,429.47 = 86,757,745.97/x
  3. Step 3: Cross multiply
    157,308,333.89x = 217,098,429.47 × 86,757,745.97
  4. Step 4: Simplify right side
    157,308,333.89x = 18,834,970,392,924,940
  5. Step 5: Solve for x
    x = 18,834,970,392,924,940/157,308,333.89
  6. Step 6: Final answer
    x = 119,732,819.79

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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.