Home / 76,969,000-106,218,930.72-43,928,588.08

Finding the Fourth Proportional to 76,969,000, 106,218,930.72 and 43,928,588.08

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Solution

The fourth proportional to 76,969,000, 106,218,930.72 and 43,928,588.08 is: 60,622,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,969,000 : 106,218,930.72 = 43,928,588.08 : x
  2. Step 2: Convert to fraction form
    76,969,000/106,218,930.72 = 43,928,588.08/x
  3. Step 3: Cross multiply
    76,969,000x = 106,218,930.72 × 43,928,588.08
  4. Step 4: Simplify right side
    76,969,000x = 4,666,047,653,896,938
  5. Step 5: Solve for x
    x = 4,666,047,653,896,938/76,969,000
  6. Step 6: Final answer
    x = 60,622,427.91

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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.