Home / 547,438,792.09-755,449,925.54-321,374,140.67

Finding the Fourth Proportional to 547,438,792.09, 755,449,925.54 and 321,374,140.67

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Solution

The fourth proportional to 547,438,792.09, 755,449,925.54 and 321,374,140.67 is: 443,487,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,438,792.09 : 755,449,925.54 = 321,374,140.67 : x
  2. Step 2: Convert to fraction form
    547,438,792.09/755,449,925.54 = 321,374,140.67/x
  3. Step 3: Cross multiply
    547,438,792.09x = 755,449,925.54 × 321,374,140.67
  4. Step 4: Simplify right side
    547,438,792.09x = 242,782,070,639,632,992
  5. Step 5: Solve for x
    x = 242,782,070,639,632,992/547,438,792.09
  6. Step 6: Final answer
    x = 443,487,151.71

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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.