Home / 105,714,097.18-145,947,999.95-66,589,410.78

Finding the Fourth Proportional to 105,714,097.18, 145,947,999.95 and 66,589,410.78

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Solution

The fourth proportional to 105,714,097.18, 145,947,999.95 and 66,589,410.78 is: 91,932,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,714,097.18 : 145,947,999.95 = 66,589,410.78 : x
  2. Step 2: Convert to fraction form
    105,714,097.18/145,947,999.95 = 66,589,410.78/x
  3. Step 3: Cross multiply
    105,714,097.18x = 145,947,999.95 × 66,589,410.78
  4. Step 4: Simplify right side
    105,714,097.18x = 9,718,591,321,189,968
  5. Step 5: Solve for x
    x = 9,718,591,321,189,968/105,714,097.18
  6. Step 6: Final answer
    x = 91,932,784.56

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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.