Home / 84,515,611.18-116,740,949.40-69,890,354.86

Finding the Fourth Proportional to 84,515,611.18, 116,740,949.40 and 69,890,354.86

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Solution

The fourth proportional to 84,515,611.18, 116,740,949.40 and 69,890,354.86 is: 96,539,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,515,611.18 : 116,740,949.40 = 69,890,354.86 : x
  2. Step 2: Convert to fraction form
    84,515,611.18/116,740,949.40 = 69,890,354.86/x
  3. Step 3: Cross multiply
    84,515,611.18x = 116,740,949.40 × 69,890,354.86
  4. Step 4: Simplify right side
    84,515,611.18x = 8,159,066,380,259,304
  5. Step 5: Solve for x
    x = 8,159,066,380,259,304/84,515,611.18
  6. Step 6: Final answer
    x = 96,539,163.20

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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.