Home / 12,775,918.72-17,630,771.52-7,052,782.72

Finding the Fourth Proportional to 12,775,918.72, 17,630,771.52 and 7,052,782.72

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Solution

The fourth proportional to 12,775,918.72, 17,630,771.52 and 7,052,782.72 is: 9,732,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,918.72 : 17,630,771.52 = 7,052,782.72 : x
  2. Step 2: Convert to fraction form
    12,775,918.72/17,630,771.52 = 7,052,782.72/x
  3. Step 3: Cross multiply
    12,775,918.72x = 17,630,771.52 × 7,052,782.72
  4. Step 4: Simplify right side
    12,775,918.72x = 124,346,000,716,524.12
  5. Step 5: Solve for x
    x = 124,346,000,716,524.12/12,775,918.72
  6. Step 6: Final answer
    x = 9,732,842.19

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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.