Home / 13,608,465.60-20,412,698.40-7,215,427.20

Finding the Fourth Proportional to 13,608,465.60, 20,412,698.40 and 7,215,427.20

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Solution

The fourth proportional to 13,608,465.60, 20,412,698.40 and 7,215,427.20 is: 10,823,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,465.60 : 20,412,698.40 = 7,215,427.20 : x
  2. Step 2: Convert to fraction form
    13,608,465.60/20,412,698.40 = 7,215,427.20/x
  3. Step 3: Cross multiply
    13,608,465.60x = 20,412,698.40 × 7,215,427.20
  4. Step 4: Simplify right side
    13,608,465.60x = 147,286,339,260,756.47
  5. Step 5: Solve for x
    x = 147,286,339,260,756.47/13,608,465.60
  6. Step 6: Final answer
    x = 10,823,140.80

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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.