Home / 128,517,115.86-192,803,329.25-39,883,936.01

Finding the Fourth Proportional to 128,517,115.86, 192,803,329.25 and 39,883,936.01

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Solution

The fourth proportional to 128,517,115.86, 192,803,329.25 and 39,883,936.01 is: 59,834,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,517,115.86 : 192,803,329.25 = 39,883,936.01 : x
  2. Step 2: Convert to fraction form
    128,517,115.86/192,803,329.25 = 39,883,936.01/x
  3. Step 3: Cross multiply
    128,517,115.86x = 192,803,329.25 × 39,883,936.01
  4. Step 4: Simplify right side
    128,517,115.86x = 7,689,755,645,158,526
  5. Step 5: Solve for x
    x = 7,689,755,645,158,526/128,517,115.86
  6. Step 6: Final answer
    x = 59,834,486.59

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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.