Home / 259,206,375.77-388,809,937.85-105,852,432.21

Finding the Fourth Proportional to 259,206,375.77, 388,809,937.85 and 105,852,432.21

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Solution

The fourth proportional to 259,206,375.77, 388,809,937.85 and 105,852,432.21 is: 158,778,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,206,375.77 : 388,809,937.85 = 105,852,432.21 : x
  2. Step 2: Convert to fraction form
    259,206,375.77/388,809,937.85 = 105,852,432.21/x
  3. Step 3: Cross multiply
    259,206,375.77x = 388,809,937.85 × 105,852,432.21
  4. Step 4: Simplify right side
    259,206,375.77x = 41,156,477,589,106,072
  5. Step 5: Solve for x
    x = 41,156,477,589,106,072/259,206,375.77
  6. Step 6: Final answer
    x = 158,778,801.12

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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.