Home / 120,082,817.85-165,795,635.39-76,068,875.13

Finding the Fourth Proportional to 120,082,817.85, 165,795,635.39 and 76,068,875.13

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Solution

The fourth proportional to 120,082,817.85, 165,795,635.39 and 76,068,875.13 is: 105,026,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,082,817.85 : 165,795,635.39 = 76,068,875.13 : x
  2. Step 2: Convert to fraction form
    120,082,817.85/165,795,635.39 = 76,068,875.13/x
  3. Step 3: Cross multiply
    120,082,817.85x = 165,795,635.39 × 76,068,875.13
  4. Step 4: Simplify right side
    120,082,817.85x = 12,611,887,485,200,572
  5. Step 5: Solve for x
    x = 12,611,887,485,200,572/120,082,817.85
  6. Step 6: Final answer
    x = 105,026,578.41

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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.