Home / 12,458,360.46-18,691,748.64-7,850,816.40

Finding the Fourth Proportional to 12,458,360.46, 18,691,748.64 and 7,850,816.40

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Solution

The fourth proportional to 12,458,360.46, 18,691,748.64 and 7,850,816.40 is: 11,778,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,360.46 : 18,691,748.64 = 7,850,816.40 : x
  2. Step 2: Convert to fraction form
    12,458,360.46/18,691,748.64 = 7,850,816.40/x
  3. Step 3: Cross multiply
    12,458,360.46x = 18,691,748.64 × 7,850,816.40
  4. Step 4: Simplify right side
    12,458,360.46x = 146,745,486,767,589.72
  5. Step 5: Solve for x
    x = 146,745,486,767,589.72/12,458,360.46
  6. Step 6: Final answer
    x = 11,778,876.30

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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.