Home / 208,384,795.10-312,605,936.64-120,987,471.60

Finding the Fourth Proportional to 208,384,795.10, 312,605,936.64 and 120,987,471.60

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Solution

The fourth proportional to 208,384,795.10, 312,605,936.64 and 120,987,471.60 is: 181,497,896.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,384,795.10 : 312,605,936.64 = 120,987,471.60 : x
  2. Step 2: Convert to fraction form
    208,384,795.10/312,605,936.64 = 120,987,471.60/x
  3. Step 3: Cross multiply
    208,384,795.10x = 312,605,936.64 × 120,987,471.60
  4. Step 4: Simplify right side
    208,384,795.10x = 37,821,401,881,223,392
  5. Step 5: Solve for x
    x = 37,821,401,881,223,392/208,384,795.10
  6. Step 6: Final answer
    x = 181,497,896.06

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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.