Home / 347,639,544.36-521,378,418.73-129,392,668.89

Finding the Fourth Proportional to 347,639,544.36, 521,378,418.73 and 129,392,668.89

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Solution

The fourth proportional to 347,639,544.36, 521,378,418.73 and 129,392,668.89 is: 194,058,892.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,639,544.36 : 521,378,418.73 = 129,392,668.89 : x
  2. Step 2: Convert to fraction form
    347,639,544.36/521,378,418.73 = 129,392,668.89/x
  3. Step 3: Cross multiply
    347,639,544.36x = 521,378,418.73 × 129,392,668.89
  4. Step 4: Simplify right side
    347,639,544.36x = 67,462,545,103,691,648
  5. Step 5: Solve for x
    x = 67,462,545,103,691,648/347,639,544.36
  6. Step 6: Final answer
    x = 194,058,892.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.