Home / 81,869,986.94-112,979,037.59-50,077,817.39

Finding the Fourth Proportional to 81,869,986.94, 112,979,037.59 and 50,077,817.39

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Solution

The fourth proportional to 81,869,986.94, 112,979,037.59 and 50,077,817.39 is: 69,106,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869,986.94 : 112,979,037.59 = 50,077,817.39 : x
  2. Step 2: Convert to fraction form
    81,869,986.94/112,979,037.59 = 50,077,817.39/x
  3. Step 3: Cross multiply
    81,869,986.94x = 112,979,037.59 × 50,077,817.39
  4. Step 4: Simplify right side
    81,869,986.94x = 5,657,743,613,079,576
  5. Step 5: Solve for x
    x = 5,657,743,613,079,576/81,869,986.94
  6. Step 6: Final answer
    x = 69,106,443.33

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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.