Home / 101,499,917.12-140,069,989.28-55,090,180.61

Finding the Fourth Proportional to 101,499,917.12, 140,069,989.28 and 55,090,180.61

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Solution

The fourth proportional to 101,499,917.12, 140,069,989.28 and 55,090,180.61 is: 76,024,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,499,917.12 : 140,069,989.28 = 55,090,180.61 : x
  2. Step 2: Convert to fraction form
    101,499,917.12/140,069,989.28 = 55,090,180.61/x
  3. Step 3: Cross multiply
    101,499,917.12x = 140,069,989.28 × 55,090,180.61
  4. Step 4: Simplify right side
    101,499,917.12x = 7,716,481,006,913,339
  5. Step 5: Solve for x
    x = 7,716,481,006,913,339/101,499,917.12
  6. Step 6: Final answer
    x = 76,024,505.50

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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.