Home / 101,499,918.12-140,069,990.66-55,090,181.61

Finding the Fourth Proportional to 101,499,918.12, 140,069,990.66 and 55,090,181.61

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Solution

The fourth proportional to 101,499,918.12, 140,069,990.66 and 55,090,181.61 is: 76,024,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,499,918.12 : 140,069,990.66 = 55,090,181.61 : x
  2. Step 2: Convert to fraction form
    101,499,918.12/140,069,990.66 = 55,090,181.61/x
  3. Step 3: Cross multiply
    101,499,918.12x = 140,069,990.66 × 55,090,181.61
  4. Step 4: Simplify right side
    101,499,918.12x = 7,716,481,223,570,403
  5. Step 5: Solve for x
    x = 7,716,481,223,570,403/101,499,918.12
  6. Step 6: Final answer
    x = 76,024,506.88

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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.