Home / 128,788,560-193,158,198.57-50,005,068.96

Finding the Fourth Proportional to 128,788,560, 193,158,198.57 and 50,005,068.96

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Solution

The fourth proportional to 128,788,560, 193,158,198.57 and 50,005,068.96 is: 74,998,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,788,560 : 193,158,198.57 = 50,005,068.96 : x
  2. Step 2: Convert to fraction form
    128,788,560/193,158,198.57 = 50,005,068.96/x
  3. Step 3: Cross multiply
    128,788,560x = 193,158,198.57 × 50,005,068.96
  4. Step 4: Simplify right side
    128,788,560x = 9,658,889,039,682,224
  5. Step 5: Solve for x
    x = 9,658,889,039,682,224/128,788,560
  6. Step 6: Final answer
    x = 74,998,035.85

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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.