Home / 621,125,822.70-930,897,477.45-330,132,350.70

Finding the Fourth Proportional to 621,125,822.70, 930,897,477.45 and 330,132,350.70

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Solution

The fourth proportional to 621,125,822.70, 930,897,477.45 and 330,132,350.70 is: 494,777,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,125,822.70 : 930,897,477.45 = 330,132,350.70 : x
  2. Step 2: Convert to fraction form
    621,125,822.70/930,897,477.45 = 330,132,350.70/x
  3. Step 3: Cross multiply
    621,125,822.70x = 930,897,477.45 × 330,132,350.70
  4. Step 4: Simplify right side
    621,125,822.70x = 307,319,372,491,268,736
  5. Step 5: Solve for x
    x = 307,319,372,491,268,736/621,125,822.70
  6. Step 6: Final answer
    x = 494,777,968.10

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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.