Home / 291,187,699.33-401,848,941.76-172,212,279.49

Finding the Fourth Proportional to 291,187,699.33, 401,848,941.76 and 172,212,279.49

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Solution

The fourth proportional to 291,187,699.33, 401,848,941.76 and 172,212,279.49 is: 237,658,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,187,699.33 : 401,848,941.76 = 172,212,279.49 : x
  2. Step 2: Convert to fraction form
    291,187,699.33/401,848,941.76 = 172,212,279.49/x
  3. Step 3: Cross multiply
    291,187,699.33x = 401,848,941.76 × 172,212,279.49
  4. Step 4: Simplify right side
    291,187,699.33x = 69,203,322,271,133,856
  5. Step 5: Solve for x
    x = 69,203,322,271,133,856/291,187,699.33
  6. Step 6: Final answer
    x = 237,658,810.56

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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.