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Finding the Fourth Proportional to 494,857,395.90, 742,097,137.05 and 149,696,307.90

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Solution

The fourth proportional to 494,857,395.90, 742,097,137.05 and 149,696,307.90 is: 224,487,301.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,857,395.90 : 742,097,137.05 = 149,696,307.90 : x
  2. Step 2: Convert to fraction form
    494,857,395.90/742,097,137.05 = 149,696,307.90/x
  3. Step 3: Cross multiply
    494,857,395.90x = 742,097,137.05 × 149,696,307.90
  4. Step 4: Simplify right side
    494,857,395.90x = 111,089,201,519,545,296
  5. Step 5: Solve for x
    x = 111,089,201,519,545,296/494,857,395.90
  6. Step 6: Final answer
    x = 224,487,301.68

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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.