Home / 238,626,791.10-329,350,172.31-149,360,128.74

Finding the Fourth Proportional to 238,626,791.10, 329,350,172.31 and 149,360,128.74

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Solution

The fourth proportional to 238,626,791.10, 329,350,172.31 and 149,360,128.74 is: 206,145,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,626,791.10 : 329,350,172.31 = 149,360,128.74 : x
  2. Step 2: Convert to fraction form
    238,626,791.10/329,350,172.31 = 149,360,128.74/x
  3. Step 3: Cross multiply
    238,626,791.10x = 329,350,172.31 × 149,360,128.74
  4. Step 4: Simplify right side
    238,626,791.10x = 49,191,784,136,762,784
  5. Step 5: Solve for x
    x = 49,191,784,136,762,784/238,626,791.10
  6. Step 6: Final answer
    x = 206,145,269.40

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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.