Home / 347,702,694.80-521,554,042.20-209,953,187.60

Finding the Fourth Proportional to 347,702,694.80, 521,554,042.20 and 209,953,187.60

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Solution

The fourth proportional to 347,702,694.80, 521,554,042.20 and 209,953,187.60 is: 314,929,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,702,694.80 : 521,554,042.20 = 209,953,187.60 : x
  2. Step 2: Convert to fraction form
    347,702,694.80/521,554,042.20 = 209,953,187.60/x
  3. Step 3: Cross multiply
    347,702,694.80x = 521,554,042.20 × 209,953,187.60
  4. Step 4: Simplify right side
    347,702,694.80x = 109,501,933,665,554,912
  5. Step 5: Solve for x
    x = 109,501,933,665,554,912/347,702,694.80
  6. Step 6: Final answer
    x = 314,929,781.40

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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.