Home / 40,475,245.55-55,855,838.87-21,890,385.69

Finding the Fourth Proportional to 40,475,245.55, 55,855,838.87 and 21,890,385.69

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Solution

The fourth proportional to 40,475,245.55, 55,855,838.87 and 21,890,385.69 is: 30,208,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,475,245.55 : 55,855,838.87 = 21,890,385.69 : x
  2. Step 2: Convert to fraction form
    40,475,245.55/55,855,838.87 = 21,890,385.69/x
  3. Step 3: Cross multiply
    40,475,245.55x = 55,855,838.87 × 21,890,385.69
  4. Step 4: Simplify right side
    40,475,245.55x = 1,222,705,855,793,342
  5. Step 5: Solve for x
    x = 1,222,705,855,793,342/40,475,245.55
  6. Step 6: Final answer
    x = 30,208,732.26

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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.