Home / 400,489,884.91-600,907,462.25-216,220,774.62

Finding the Fourth Proportional to 400,489,884.91, 600,907,462.25 and 216,220,774.62

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Solution

The fourth proportional to 400,489,884.91, 600,907,462.25 and 216,220,774.62 is: 324,424,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,489,884.91 : 600,907,462.25 = 216,220,774.62 : x
  2. Step 2: Convert to fraction form
    400,489,884.91/600,907,462.25 = 216,220,774.62/x
  3. Step 3: Cross multiply
    400,489,884.91x = 600,907,462.25 × 216,220,774.62
  4. Step 4: Simplify right side
    400,489,884.91x = 129,928,676,963,173,968
  5. Step 5: Solve for x
    x = 129,928,676,963,173,968/400,489,884.91
  6. Step 6: Final answer
    x = 324,424,365.91

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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.