Home / 20,121,530.96-27,766,841.64-10,954,205.84

Finding the Fourth Proportional to 20,121,530.96, 27,766,841.64 and 10,954,205.84

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Solution

The fourth proportional to 20,121,530.96, 27,766,841.64 and 10,954,205.84 is: 15,116,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121,530.96 : 27,766,841.64 = 10,954,205.84 : x
  2. Step 2: Convert to fraction form
    20,121,530.96/27,766,841.64 = 10,954,205.84/x
  3. Step 3: Cross multiply
    20,121,530.96x = 27,766,841.64 × 10,954,205.84
  4. Step 4: Simplify right side
    20,121,530.96x = 304,163,698,851,243.19
  5. Step 5: Solve for x
    x = 304,163,698,851,243.19/20,121,530.96
  6. Step 6: Final answer
    x = 15,116,329.84

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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.