Home / 177,147,750.80-265,721,626.20-81,409,638.80

Finding the Fourth Proportional to 177,147,750.80, 265,721,626.20 and 81,409,638.80

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Solution

The fourth proportional to 177,147,750.80, 265,721,626.20 and 81,409,638.80 is: 122,114,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,147,750.80 : 265,721,626.20 = 81,409,638.80 : x
  2. Step 2: Convert to fraction form
    177,147,750.80/265,721,626.20 = 81,409,638.80/x
  3. Step 3: Cross multiply
    177,147,750.80x = 265,721,626.20 × 81,409,638.80
  4. Step 4: Simplify right side
    177,147,750.80x = 21,632,301,610,290,616
  5. Step 5: Solve for x
    x = 21,632,301,610,290,616/177,147,750.80
  6. Step 6: Final answer
    x = 122,114,458.20

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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.