Home / 81,662,485.30-122,493,727.95-36,224,279.80

Finding the Fourth Proportional to 81,662,485.30, 122,493,727.95 and 36,224,279.80

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Solution

The fourth proportional to 81,662,485.30, 122,493,727.95 and 36,224,279.80 is: 54,336,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,662,485.30 : 122,493,727.95 = 36,224,279.80 : x
  2. Step 2: Convert to fraction form
    81,662,485.30/122,493,727.95 = 36,224,279.80/x
  3. Step 3: Cross multiply
    81,662,485.30x = 122,493,727.95 × 36,224,279.80
  4. Step 4: Simplify right side
    81,662,485.30x = 4,437,247,075,005,880
  5. Step 5: Solve for x
    x = 4,437,247,075,005,880/81,662,485.30
  6. Step 6: Final answer
    x = 54,336,419.70

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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.