Home / 10,533,412.20-15,811,928.10-8,147,832.60

Finding the Fourth Proportional to 10,533,412.20, 15,811,928.10 and 8,147,832.60

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Solution

The fourth proportional to 10,533,412.20, 15,811,928.10 and 8,147,832.60 is: 12,230,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533,412.20 : 15,811,928.10 = 8,147,832.60 : x
  2. Step 2: Convert to fraction form
    10,533,412.20/15,811,928.10 = 8,147,832.60/x
  3. Step 3: Cross multiply
    10,533,412.20x = 15,811,928.10 × 8,147,832.60
  4. Step 4: Simplify right side
    10,533,412.20x = 128,832,943,242,036.05
  5. Step 5: Solve for x
    x = 128,832,943,242,036.05/10,533,412.20
  6. Step 6: Final answer
    x = 12,230,884.05

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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.