Home / 221,666,736.40-305,909,543.40-123,881,589.52

Finding the Fourth Proportional to 221,666,736.40, 305,909,543.40 and 123,881,589.52

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Solution

The fourth proportional to 221,666,736.40, 305,909,543.40 and 123,881,589.52 is: 170,961,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,666,736.40 : 305,909,543.40 = 123,881,589.52 : x
  2. Step 2: Convert to fraction form
    221,666,736.40/305,909,543.40 = 123,881,589.52/x
  3. Step 3: Cross multiply
    221,666,736.40x = 305,909,543.40 × 123,881,589.52
  4. Step 4: Simplify right side
    221,666,736.40x = 37,896,560,485,729,424
  5. Step 5: Solve for x
    x = 37,896,560,485,729,424/221,666,736.40
  6. Step 6: Final answer
    x = 170,961,873.22

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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.