Home / 420,126,466.70-579,775,326.36-231,955,124.60

Finding the Fourth Proportional to 420,126,466.70, 579,775,326.36 and 231,955,124.60

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Solution

The fourth proportional to 420,126,466.70, 579,775,326.36 and 231,955,124.60 is: 320,098,514.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,126,466.70 : 579,775,326.36 = 231,955,124.60 : x
  2. Step 2: Convert to fraction form
    420,126,466.70/579,775,326.36 = 231,955,124.60/x
  3. Step 3: Cross multiply
    420,126,466.70x = 579,775,326.36 × 231,955,124.60
  4. Step 4: Simplify right side
    420,126,466.70x = 134,481,858,065,839,472
  5. Step 5: Solve for x
    x = 134,481,858,065,839,472/420,126,466.70
  6. Step 6: Final answer
    x = 320,098,514.91

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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.