Home / 55,224,489.51-76,212,390.42-30,778,378.47

Finding the Fourth Proportional to 55,224,489.51, 76,212,390.42 and 30,778,378.47

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Solution

The fourth proportional to 55,224,489.51, 76,212,390.42 and 30,778,378.47 is: 42,475,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,224,489.51 : 76,212,390.42 = 30,778,378.47 : x
  2. Step 2: Convert to fraction form
    55,224,489.51/76,212,390.42 = 30,778,378.47/x
  3. Step 3: Cross multiply
    55,224,489.51x = 76,212,390.42 × 30,778,378.47
  4. Step 4: Simplify right side
    55,224,489.51x = 2,345,693,796,450,162
  5. Step 5: Solve for x
    x = 2,345,693,796,450,162/55,224,489.51
  6. Step 6: Final answer
    x = 42,475,608.51

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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.