Home / 621,125,810.20-930,897,458.70-330,132,338.20

Finding the Fourth Proportional to 621,125,810.20, 930,897,458.70 and 330,132,338.20

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Solution

The fourth proportional to 621,125,810.20, 930,897,458.70 and 330,132,338.20 is: 494,777,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,125,810.20 : 930,897,458.70 = 330,132,338.20 : x
  2. Step 2: Convert to fraction form
    621,125,810.20/930,897,458.70 = 330,132,338.20/x
  3. Step 3: Cross multiply
    621,125,810.20x = 930,897,458.70 × 330,132,338.20
  4. Step 4: Simplify right side
    621,125,810.20x = 307,319,354,665,068,928
  5. Step 5: Solve for x
    x = 307,319,354,665,068,928/621,125,810.20
  6. Step 6: Final answer
    x = 494,777,949.36

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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.