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Finding the Fourth Proportional to 449,339,963.80, 674,009,945.70 and 376,780,552.60

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Solution

The fourth proportional to 449,339,963.80, 674,009,945.70 and 376,780,552.60 is: 565,170,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,339,963.80 : 674,009,945.70 = 376,780,552.60 : x
  2. Step 2: Convert to fraction form
    449,339,963.80/674,009,945.70 = 376,780,552.60/x
  3. Step 3: Cross multiply
    449,339,963.80x = 674,009,945.70 × 376,780,552.60
  4. Step 4: Simplify right side
    449,339,963.80x = 253,953,839,798,742,016
  5. Step 5: Solve for x
    x = 253,953,839,798,742,016/449,339,963.80
  6. Step 6: Final answer
    x = 565,170,828.90

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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.