Home / 86,562,745.72-129,844,376.92-20,983,623.43

Finding the Fourth Proportional to 86,562,745.72, 129,844,376.92 and 20,983,623.43

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Solution

The fourth proportional to 86,562,745.72, 129,844,376.92 and 20,983,623.43 is: 31,475,497.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,562,745.72 : 129,844,376.92 = 20,983,623.43 : x
  2. Step 2: Convert to fraction form
    86,562,745.72/129,844,376.92 = 20,983,623.43/x
  3. Step 3: Cross multiply
    86,562,745.72x = 129,844,376.92 × 20,983,623.43
  4. Step 4: Simplify right side
    86,562,745.72x = 2,724,605,509,792,263
  5. Step 5: Solve for x
    x = 2,724,605,509,792,263/86,562,745.72
  6. Step 6: Final answer
    x = 31,475,497.77

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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.