Home / 621,111,925.20-930,876,631.20-330,118,453.20

Finding the Fourth Proportional to 621,111,925.20, 930,876,631.20 and 330,118,453.20

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Solution

The fourth proportional to 621,111,925.20, 930,876,631.20 and 330,118,453.20 is: 494,757,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,111,925.20 : 930,876,631.20 = 330,118,453.20 : x
  2. Step 2: Convert to fraction form
    621,111,925.20/930,876,631.20 = 330,118,453.20/x
  3. Step 3: Cross multiply
    621,111,925.20x = 930,876,631.20 × 330,118,453.20
  4. Step 4: Simplify right side
    621,111,925.20x = 307,299,553,611,770,880
  5. Step 5: Solve for x
    x = 307,299,553,611,770,880/621,111,925.20
  6. Step 6: Final answer
    x = 494,757,130.15

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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.