Home / 103,601,621.66-142,969,361.01-57,190,879.13

Finding the Fourth Proportional to 103,601,621.66, 142,969,361.01 and 57,190,879.13

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Solution

The fourth proportional to 103,601,621.66, 142,969,361.01 and 57,190,879.13 is: 78,922,929.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,601,621.66 : 142,969,361.01 = 57,190,879.13 : x
  2. Step 2: Convert to fraction form
    103,601,621.66/142,969,361.01 = 57,190,879.13/x
  3. Step 3: Cross multiply
    103,601,621.66x = 142,969,361.01 × 57,190,879.13
  4. Step 4: Simplify right side
    103,601,621.66x = 8,176,543,444,816,245
  5. Step 5: Solve for x
    x = 8,176,543,444,816,245/103,601,621.66
  6. Step 6: Final answer
    x = 78,922,929.14

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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.