Home / 172,650,081.20-258,933,649.80-99,709,127.60

Finding the Fourth Proportional to 172,650,081.20, 258,933,649.80 and 99,709,127.60

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Solution

The fourth proportional to 172,650,081.20, 258,933,649.80 and 99,709,127.60 is: 149,539,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,650,081.20 : 258,933,649.80 = 99,709,127.60 : x
  2. Step 2: Convert to fraction form
    172,650,081.20/258,933,649.80 = 99,709,127.60/x
  3. Step 3: Cross multiply
    172,650,081.20x = 258,933,649.80 × 99,709,127.60
  4. Step 4: Simplify right side
    172,650,081.20x = 25,818,048,327,841,916
  5. Step 5: Solve for x
    x = 25,818,048,327,841,916/172,650,081.20
  6. Step 6: Final answer
    x = 149,539,740.43

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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.