Home / 40,011,862.12-55,216,634.82-21,677,147.62

Finding the Fourth Proportional to 40,011,862.12, 55,216,634.82 and 21,677,147.62

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Solution

The fourth proportional to 40,011,862.12, 55,216,634.82 and 21,677,147.62 is: 29,914,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,862.12 : 55,216,634.82 = 21,677,147.62 : x
  2. Step 2: Convert to fraction form
    40,011,862.12/55,216,634.82 = 21,677,147.62/x
  3. Step 3: Cross multiply
    40,011,862.12x = 55,216,634.82 × 21,677,147.62
  4. Step 4: Simplify right side
    40,011,862.12x = 1,196,939,144,072,772.25
  5. Step 5: Solve for x
    x = 1,196,939,144,072,772.25/40,011,862.12
  6. Step 6: Final answer
    x = 29,914,607.34

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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.