Home / 12,299,971.46-18,439,459.58-8,694,395.78

Finding the Fourth Proportional to 12,299,971.46, 18,439,459.58 and 8,694,395.78

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Solution

The fourth proportional to 12,299,971.46, 18,439,459.58 and 8,694,395.78 is: 13,034,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299,971.46 : 18,439,459.58 = 8,694,395.78 : x
  2. Step 2: Convert to fraction form
    12,299,971.46/18,439,459.58 = 8,694,395.78/x
  3. Step 3: Cross multiply
    12,299,971.46x = 18,439,459.58 × 8,694,395.78
  4. Step 4: Simplify right side
    12,299,971.46x = 160,319,959,557,832.53
  5. Step 5: Solve for x
    x = 160,319,959,557,832.53/12,299,971.46
  6. Step 6: Final answer
    x = 13,034,173.30

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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.