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Finding the Fourth Proportional to 486,043,222.49, 728,769,596.91 and 190,584,378.37

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Solution

The fourth proportional to 486,043,222.49, 728,769,596.91 and 190,584,378.37 is: 285,760,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,043,222.49 : 728,769,596.91 = 190,584,378.37 : x
  2. Step 2: Convert to fraction form
    486,043,222.49/728,769,596.91 = 190,584,378.37/x
  3. Step 3: Cross multiply
    486,043,222.49x = 728,769,596.91 × 190,584,378.37
  4. Step 4: Simplify right side
    486,043,222.49x = 138,892,100,604,931,520
  5. Step 5: Solve for x
    x = 138,892,100,604,931,520/486,043,222.49
  6. Step 6: Final answer
    x = 285,760,801.06

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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.