Home / 12,455,310.90-18,688,360.04-6,691,319.31

Finding the Fourth Proportional to 12,455,310.90, 18,688,360.04 and 6,691,319.31

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Solution

The fourth proportional to 12,455,310.90, 18,688,360.04 and 6,691,319.31 is: 10,039,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,310.90 : 18,688,360.04 = 6,691,319.31 : x
  2. Step 2: Convert to fraction form
    12,455,310.90/18,688,360.04 = 6,691,319.31/x
  3. Step 3: Cross multiply
    12,455,310.90x = 18,688,360.04 × 6,691,319.31
  4. Step 4: Simplify right side
    12,455,310.90x = 125,049,784,374,427.77
  5. Step 5: Solve for x
    x = 125,049,784,374,427.77/12,455,310.90
  6. Step 6: Final answer
    x = 10,039,876.59

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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.