Home / 347,702,429.80-521,553,644.70-209,952,922.60

Finding the Fourth Proportional to 347,702,429.80, 521,553,644.70 and 209,952,922.60

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Solution

The fourth proportional to 347,702,429.80, 521,553,644.70 and 209,952,922.60 is: 314,929,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,702,429.80 : 521,553,644.70 = 209,952,922.60 : x
  2. Step 2: Convert to fraction form
    347,702,429.80/521,553,644.70 = 209,952,922.60/x
  3. Step 3: Cross multiply
    347,702,429.80x = 521,553,644.70 × 209,952,922.60
  4. Step 4: Simplify right side
    347,702,429.80x = 109,501,711,997,446,992
  5. Step 5: Solve for x
    x = 109,501,711,997,446,992/347,702,429.80
  6. Step 6: Final answer
    x = 314,929,383.90

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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.