Home / 55,228,209.84-76,215,013.56-30,781,398.96

Finding the Fourth Proportional to 55,228,209.84, 76,215,013.56 and 30,781,398.96

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Solution

The fourth proportional to 55,228,209.84, 76,215,013.56 and 30,781,398.96 is: 42,478,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,228,209.84 : 76,215,013.56 = 30,781,398.96 : x
  2. Step 2: Convert to fraction form
    55,228,209.84/76,215,013.56 = 30,781,398.96/x
  3. Step 3: Cross multiply
    55,228,209.84x = 76,215,013.56 × 30,781,398.96
  4. Step 4: Simplify right side
    55,228,209.84x = 2,346,004,739,132,170
  5. Step 5: Solve for x
    x = 2,346,004,739,132,170/55,228,209.84
  6. Step 6: Final answer
    x = 42,478,377.37

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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.