Home / 120,082,814.10-165,795,630.21-76,068,871.38

Finding the Fourth Proportional to 120,082,814.10, 165,795,630.21 and 76,068,871.38

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Solution

The fourth proportional to 120,082,814.10, 165,795,630.21 and 76,068,871.38 is: 105,026,573.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,082,814.10 : 165,795,630.21 = 76,068,871.38 : x
  2. Step 2: Convert to fraction form
    120,082,814.10/165,795,630.21 = 76,068,871.38/x
  3. Step 3: Cross multiply
    120,082,814.10x = 165,795,630.21 × 76,068,871.38
  4. Step 4: Simplify right side
    120,082,814.10x = 12,611,886,469,810,532
  5. Step 5: Solve for x
    x = 12,611,886,469,810,532/120,082,814.10
  6. Step 6: Final answer
    x = 105,026,573.24

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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.