Home / 74,887,939.40-112,323,614.70-21,040,694.60

Finding the Fourth Proportional to 74,887,939.40, 112,323,614.70 and 21,040,694.60

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Solution

The fourth proportional to 74,887,939.40, 112,323,614.70 and 21,040,694.60 is: 31,558,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,939.40 : 112,323,614.70 = 21,040,694.60 : x
  2. Step 2: Convert to fraction form
    74,887,939.40/112,323,614.70 = 21,040,694.60/x
  3. Step 3: Cross multiply
    74,887,939.40x = 112,323,614.70 × 21,040,694.60
  4. Step 4: Simplify right side
    74,887,939.40x = 2,363,366,873,270,771
  5. Step 5: Solve for x
    x = 2,363,366,873,270,771/74,887,939.40
  6. Step 6: Final answer
    x = 31,558,711.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.