Home / 40,414,821.72-55,772,476.37-21,829,961.76

Finding the Fourth Proportional to 40,414,821.72, 55,772,476.37 and 21,829,961.76

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Solution

The fourth proportional to 40,414,821.72, 55,772,476.37 and 21,829,961.76 is: 30,125,359.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,414,821.72 : 55,772,476.37 = 21,829,961.76 : x
  2. Step 2: Convert to fraction form
    40,414,821.72/55,772,476.37 = 21,829,961.76/x
  3. Step 3: Cross multiply
    40,414,821.72x = 55,772,476.37 × 21,829,961.76
  4. Step 4: Simplify right side
    40,414,821.72x = 1,217,511,026,308,454
  5. Step 5: Solve for x
    x = 1,217,511,026,308,454/40,414,821.72
  6. Step 6: Final answer
    x = 30,125,359.32

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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.