Home / 38,491,812.68-53,118,258.66-20,850,378.39

Finding the Fourth Proportional to 38,491,812.68, 53,118,258.66 and 20,850,378.39

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Solution

The fourth proportional to 38,491,812.68, 53,118,258.66 and 20,850,378.39 is: 28,773,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491,812.68 : 53,118,258.66 = 20,850,378.39 : x
  2. Step 2: Convert to fraction form
    38,491,812.68/53,118,258.66 = 20,850,378.39/x
  3. Step 3: Cross multiply
    38,491,812.68x = 53,118,258.66 × 20,850,378.39
  4. Step 4: Simplify right side
    38,491,812.68x = 1,107,535,792,478,894.38
  5. Step 5: Solve for x
    x = 1,107,535,792,478,894.38/38,491,812.68
  6. Step 6: Final answer
    x = 28,773,282.30

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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.