Home / 40,414,821.63-55,772,476.22-21,829,961.68

Finding the Fourth Proportional to 40,414,821.63, 55,772,476.22 and 21,829,961.68

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Solution

The fourth proportional to 40,414,821.63, 55,772,476.22 and 21,829,961.68 is: 30,125,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,414,821.63 : 55,772,476.22 = 21,829,961.68 : x
  2. Step 2: Convert to fraction form
    40,414,821.63/55,772,476.22 = 21,829,961.68/x
  3. Step 3: Cross multiply
    40,414,821.63x = 55,772,476.22 × 21,829,961.68
  4. Step 4: Simplify right side
    40,414,821.63x = 1,217,511,018,596,454.75
  5. Step 5: Solve for x
    x = 1,217,511,018,596,454.75/40,414,821.63
  6. Step 6: Final answer
    x = 30,125,359.20

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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.