Home / 81,603,722.30-122,405,583.45-57,370,012.70

Finding the Fourth Proportional to 81,603,722.30, 122,405,583.45 and 57,370,012.70

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Solution

The fourth proportional to 81,603,722.30, 122,405,583.45 and 57,370,012.70 is: 86,055,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603,722.30 : 122,405,583.45 = 57,370,012.70 : x
  2. Step 2: Convert to fraction form
    81,603,722.30/122,405,583.45 = 57,370,012.70/x
  3. Step 3: Cross multiply
    81,603,722.30x = 122,405,583.45 × 57,370,012.70
  4. Step 4: Simplify right side
    81,603,722.30x = 7,022,409,877,077,410
  5. Step 5: Solve for x
    x = 7,022,409,877,077,410/81,603,722.30
  6. Step 6: Final answer
    x = 86,055,019.05

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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.