Home / 13,073,431.80-19,610,147.70-12,485,566.20

Finding the Fourth Proportional to 13,073,431.80, 19,610,147.70 and 12,485,566.20

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Solution

The fourth proportional to 13,073,431.80, 19,610,147.70 and 12,485,566.20 is: 18,728,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073,431.80 : 19,610,147.70 = 12,485,566.20 : x
  2. Step 2: Convert to fraction form
    13,073,431.80/19,610,147.70 = 12,485,566.20/x
  3. Step 3: Cross multiply
    13,073,431.80x = 19,610,147.70 × 12,485,566.20
  4. Step 4: Simplify right side
    13,073,431.80x = 244,843,797,300,127.72
  5. Step 5: Solve for x
    x = 244,843,797,300,127.72/13,073,431.80
  6. Step 6: Final answer
    x = 18,728,349.30

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1.5x scale

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.