Home / 629,657,538.96-868,930,421.76-347,399,965.56

Finding the Fourth Proportional to 629,657,538.96, 868,930,421.76 and 347,399,965.56

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Solution

The fourth proportional to 629,657,538.96, 868,930,421.76 and 347,399,965.56 is: 479,413,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,657,538.96 : 868,930,421.76 = 347,399,965.56 : x
  2. Step 2: Convert to fraction form
    629,657,538.96/868,930,421.76 = 347,399,965.56/x
  3. Step 3: Cross multiply
    629,657,538.96x = 868,930,421.76 × 347,399,965.56
  4. Step 4: Simplify right side
    629,657,538.96x = 301,866,398,593,460,288
  5. Step 5: Solve for x
    x = 301,866,398,593,460,288/629,657,538.96
  6. Step 6: Final answer
    x = 479,413,617.59

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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.