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Finding the Fourth Proportional to 310,560,378.60, 465,444,939.60 and 165,063,642.60

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Solution

The fourth proportional to 310,560,378.60, 465,444,939.60 and 165,063,642.60 is: 247,385,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,560,378.60 : 465,444,939.60 = 165,063,642.60 : x
  2. Step 2: Convert to fraction form
    310,560,378.60/465,444,939.60 = 165,063,642.60/x
  3. Step 3: Cross multiply
    310,560,378.60x = 465,444,939.60 × 165,063,642.60
  4. Step 4: Simplify right side
    310,560,378.60x = 76,828,037,160,112,992
  5. Step 5: Solve for x
    x = 76,828,037,160,112,992/310,560,378.60
  6. Step 6: Final answer
    x = 247,385,186.44

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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.