Home / 78,389,927.42-117,577,292.85-23,802,992.78

Finding the Fourth Proportional to 78,389,927.42, 117,577,292.85 and 23,802,992.78

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Solution

The fourth proportional to 78,389,927.42, 117,577,292.85 and 23,802,992.78 is: 35,702,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389,927.42 : 117,577,292.85 = 23,802,992.78 : x
  2. Step 2: Convert to fraction form
    78,389,927.42/117,577,292.85 = 23,802,992.78/x
  3. Step 3: Cross multiply
    78,389,927.42x = 117,577,292.85 × 23,802,992.78
  4. Step 4: Simplify right side
    78,389,927.42x = 2,798,691,452,212,609
  5. Step 5: Solve for x
    x = 2,798,691,452,212,609/78,389,927.42
  6. Step 6: Final answer
    x = 35,702,181.96

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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.