Home / 12,965,468.78-17,892,341.01-7,164,199.78

Finding the Fourth Proportional to 12,965,468.78, 17,892,341.01 and 7,164,199.78

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Solution

The fourth proportional to 12,965,468.78, 17,892,341.01 and 7,164,199.78 is: 9,886,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965,468.78 : 17,892,341.01 = 7,164,199.78 : x
  2. Step 2: Convert to fraction form
    12,965,468.78/17,892,341.01 = 7,164,199.78/x
  3. Step 3: Cross multiply
    12,965,468.78x = 17,892,341.01 × 7,164,199.78
  4. Step 4: Simplify right side
    12,965,468.78x = 128,184,305,482,796.14
  5. Step 5: Solve for x
    x = 128,184,305,482,796.14/12,965,468.78
  6. Step 6: Final answer
    x = 9,886,592.43

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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.