Home / 13,556,246.40-20,327,954.40-7,878,211.20

Finding the Fourth Proportional to 13,556,246.40, 20,327,954.40 and 7,878,211.20

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Solution

The fourth proportional to 13,556,246.40, 20,327,954.40 and 7,878,211.20 is: 11,813,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556,246.40 : 20,327,954.40 = 7,878,211.20 : x
  2. Step 2: Convert to fraction form
    13,556,246.40/20,327,954.40 = 7,878,211.20/x
  3. Step 3: Cross multiply
    13,556,246.40x = 20,327,954.40 × 7,878,211.20
  4. Step 4: Simplify right side
    13,556,246.40x = 160,147,918,027,169.28
  5. Step 5: Solve for x
    x = 160,147,918,027,169.28/13,556,246.40
  6. Step 6: Final answer
    x = 11,813,588.61

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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.