Home / 120,965,896.20-181,448,844.30-72,592,955.40

Finding the Fourth Proportional to 120,965,896.20, 181,448,844.30 and 72,592,955.40

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Solution

The fourth proportional to 120,965,896.20, 181,448,844.30 and 72,592,955.40 is: 108,889,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,896.20 : 181,448,844.30 = 72,592,955.40 : x
  2. Step 2: Convert to fraction form
    120,965,896.20/181,448,844.30 = 72,592,955.40/x
  3. Step 3: Cross multiply
    120,965,896.20x = 181,448,844.30 × 72,592,955.40
  4. Step 4: Simplify right side
    120,965,896.20x = 13,171,907,861,651,446
  5. Step 5: Solve for x
    x = 13,171,907,861,651,446/120,965,896.20
  6. Step 6: Final answer
    x = 108,889,433.10

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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.