Home / 15,519,631.28-21,415,150.14-8,993,141.60

Finding the Fourth Proportional to 15,519,631.28, 21,415,150.14 and 8,993,141.60

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Solution

The fourth proportional to 15,519,631.28, 21,415,150.14 and 8,993,141.60 is: 12,409,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519,631.28 : 21,415,150.14 = 8,993,141.60 : x
  2. Step 2: Convert to fraction form
    15,519,631.28/21,415,150.14 = 8,993,141.60/x
  3. Step 3: Cross multiply
    15,519,631.28x = 21,415,150.14 × 8,993,141.60
  4. Step 4: Simplify right side
    15,519,631.28x = 192,589,477,594,279.81
  5. Step 5: Solve for x
    x = 192,589,477,594,279.81/15,519,631.28
  6. Step 6: Final answer
    x = 12,409,410.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.