Home / 347,760,013.80-521,640,020.70-261,028,842.60

Finding the Fourth Proportional to 347,760,013.80, 521,640,020.70 and 261,028,842.60

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Solution

The fourth proportional to 347,760,013.80, 521,640,020.70 and 261,028,842.60 is: 391,543,263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,760,013.80 : 521,640,020.70 = 261,028,842.60 : x
  2. Step 2: Convert to fraction form
    347,760,013.80/521,640,020.70 = 261,028,842.60/x
  3. Step 3: Cross multiply
    347,760,013.80x = 521,640,020.70 × 261,028,842.60
  4. Step 4: Simplify right side
    347,760,013.80x = 136,163,090,857,161,040
  5. Step 5: Solve for x
    x = 136,163,090,857,161,040/347,760,013.80
  6. Step 6: Final answer
    x = 391,543,263.90

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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.