Home / 12,467,178.10-17,203,394.55-7,239,164.32

Finding the Fourth Proportional to 12,467,178.10, 17,203,394.55 and 7,239,164.32

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Solution

The fourth proportional to 12,467,178.10, 17,203,394.55 and 7,239,164.32 is: 9,989,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467,178.10 : 17,203,394.55 = 7,239,164.32 : x
  2. Step 2: Convert to fraction form
    12,467,178.10/17,203,394.55 = 7,239,164.32/x
  3. Step 3: Cross multiply
    12,467,178.10x = 17,203,394.55 × 7,239,164.32
  4. Step 4: Simplify right side
    12,467,178.10x = 124,538,200,009,242.47
  5. Step 5: Solve for x
    x = 124,538,200,009,242.47/12,467,178.10
  6. Step 6: Final answer
    x = 9,989,285.39

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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.