Home / 117,212,478.50-161,753,221.77-65,704,254.50

Finding the Fourth Proportional to 117,212,478.50, 161,753,221.77 and 65,704,254.50

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Solution

The fourth proportional to 117,212,478.50, 161,753,221.77 and 65,704,254.50 is: 90,671,872.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212,478.50 : 161,753,221.77 = 65,704,254.50 : x
  2. Step 2: Convert to fraction form
    117,212,478.50/161,753,221.77 = 65,704,254.50/x
  3. Step 3: Cross multiply
    117,212,478.50x = 161,753,221.77 × 65,704,254.50
  4. Step 4: Simplify right side
    117,212,478.50x = 10,627,874,849,371,022
  5. Step 5: Solve for x
    x = 10,627,874,849,371,022/117,212,478.50
  6. Step 6: Final answer
    x = 90,671,872.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.