Home / 177,178,128.80-265,767,193.20-81,626,640.80

Finding the Fourth Proportional to 177,178,128.80, 265,767,193.20 and 81,626,640.80

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Solution

The fourth proportional to 177,178,128.80, 265,767,193.20 and 81,626,640.80 is: 122,439,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,178,128.80 : 265,767,193.20 = 81,626,640.80 : x
  2. Step 2: Convert to fraction form
    177,178,128.80/265,767,193.20 = 81,626,640.80/x
  3. Step 3: Cross multiply
    177,178,128.80x = 265,767,193.20 × 81,626,640.80
  4. Step 4: Simplify right side
    177,178,128.80x = 21,693,683,215,760,600
  5. Step 5: Solve for x
    x = 21,693,683,215,760,600/177,178,128.80
  6. Step 6: Final answer
    x = 122,439,961.20

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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.