Home / 20,891,564.39-31,346,204.55-10,116,893.36

Finding the Fourth Proportional to 20,891,564.39, 31,346,204.55 and 10,116,893.36

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Solution

The fourth proportional to 20,891,564.39, 31,346,204.55 and 10,116,893.36 is: 15,179,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,891,564.39 : 31,346,204.55 = 10,116,893.36 : x
  2. Step 2: Convert to fraction form
    20,891,564.39/31,346,204.55 = 10,116,893.36/x
  3. Step 3: Cross multiply
    20,891,564.39x = 31,346,204.55 × 10,116,893.36
  4. Step 4: Simplify right side
    20,891,564.39x = 317,126,208,713,524
  5. Step 5: Solve for x
    x = 317,126,208,713,524/20,891,564.39
  6. Step 6: Final answer
    x = 15,179,629.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.