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Finding the Fourth Proportional to 489,672,101.59, 734,371,806.60 and 162,173,151.78

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Solution

The fourth proportional to 489,672,101.59, 734,371,806.60 and 162,173,151.78 is: 243,214,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,672,101.59 : 734,371,806.60 = 162,173,151.78 : x
  2. Step 2: Convert to fraction form
    489,672,101.59/734,371,806.60 = 162,173,151.78/x
  3. Step 3: Cross multiply
    489,672,101.59x = 734,371,806.60 × 162,173,151.78
  4. Step 4: Simplify right side
    489,672,101.59x = 119,095,390,451,940,720
  5. Step 5: Solve for x
    x = 119,095,390,451,940,720/489,672,101.59
  6. Step 6: Final answer
    x = 243,214,571.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.