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Finding the Fourth Proportional to 489,642,004.80, 734,463,007.20 and 166,525,876.80

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Solution

The fourth proportional to 489,642,004.80, 734,463,007.20 and 166,525,876.80 is: 249,788,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,642,004.80 : 734,463,007.20 = 166,525,876.80 : x
  2. Step 2: Convert to fraction form
    489,642,004.80/734,463,007.20 = 166,525,876.80/x
  3. Step 3: Cross multiply
    489,642,004.80x = 734,463,007.20 × 166,525,876.80
  4. Step 4: Simplify right side
    489,642,004.80x = 122,307,096,251,144,736
  5. Step 5: Solve for x
    x = 122,307,096,251,144,736/489,642,004.80
  6. Step 6: Final answer
    x = 249,788,815.20

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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.