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Finding the Fourth Proportional to 465,259,395.69, 642,046,907.03 and 253,572,910.29

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Solution

The fourth proportional to 465,259,395.69, 642,046,907.03 and 253,572,910.29 is: 349,924,588.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,259,395.69 : 642,046,907.03 = 253,572,910.29 : x
  2. Step 2: Convert to fraction form
    465,259,395.69/642,046,907.03 = 253,572,910.29/x
  3. Step 3: Cross multiply
    465,259,395.69x = 642,046,907.03 × 253,572,910.29
  4. Step 4: Simplify right side
    465,259,395.69x = 162,805,702,757,022,272
  5. Step 5: Solve for x
    x = 162,805,702,757,022,272/465,259,395.69
  6. Step 6: Final answer
    x = 349,924,588.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.