Home / 30,540,457.12-42,146,634.96-16,789,767.52

Finding the Fourth Proportional to 30,540,457.12, 42,146,634.96 and 16,789,767.52

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Solution

The fourth proportional to 30,540,457.12, 42,146,634.96 and 16,789,767.52 is: 23,170,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540,457.12 : 42,146,634.96 = 16,789,767.52 : x
  2. Step 2: Convert to fraction form
    30,540,457.12/42,146,634.96 = 16,789,767.52/x
  3. Step 3: Cross multiply
    30,540,457.12x = 42,146,634.96 × 16,789,767.52
  4. Step 4: Simplify right side
    30,540,457.12x = 707,632,202,728,704.50
  5. Step 5: Solve for x
    x = 707,632,202,728,704.50/30,540,457.12
  6. Step 6: Final answer
    x = 23,170,321.25

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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.