Home / 298,768,512.78-412,302,344.67-166,617,851.94

Finding the Fourth Proportional to 298,768,512.78, 412,302,344.67 and 166,617,851.94

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Solution

The fourth proportional to 298,768,512.78, 412,302,344.67 and 166,617,851.94 is: 229,933,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,768,512.78 : 412,302,344.67 = 166,617,851.94 : x
  2. Step 2: Convert to fraction form
    298,768,512.78/412,302,344.67 = 166,617,851.94/x
  3. Step 3: Cross multiply
    298,768,512.78x = 412,302,344.67 × 166,617,851.94
  4. Step 4: Simplify right side
    298,768,512.78x = 68,696,931,018,740,912
  5. Step 5: Solve for x
    x = 68,696,931,018,740,912/298,768,512.78
  6. Step 6: Final answer
    x = 229,933,637.85

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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.