Home / 385,287,167.20-578,874,469.20-289,735,679.20

Finding the Fourth Proportional to 385,287,167.20, 578,874,469.20 and 289,735,679.20

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Solution

The fourth proportional to 385,287,167.20, 578,874,469.20 and 289,735,679.20 is: 435,313,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,287,167.20 : 578,874,469.20 = 289,735,679.20 : x
  2. Step 2: Convert to fraction form
    385,287,167.20/578,874,469.20 = 289,735,679.20/x
  3. Step 3: Cross multiply
    385,287,167.20x = 578,874,469.20 × 289,735,679.20
  4. Step 4: Simplify right side
    385,287,167.20x = 167,720,587,505,201,472
  5. Step 5: Solve for x
    x = 167,720,587,505,201,472/385,287,167.20
  6. Step 6: Final answer
    x = 435,313,194.37

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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.