Home / 81,274,113.36-121,882,826.52-35,811,107.28

Finding the Fourth Proportional to 81,274,113.36, 121,882,826.52 and 35,811,107.28

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Solution

The fourth proportional to 81,274,113.36, 121,882,826.52 and 35,811,107.28 is: 53,704,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,274,113.36 : 121,882,826.52 = 35,811,107.28 : x
  2. Step 2: Convert to fraction form
    81,274,113.36/121,882,826.52 = 35,811,107.28/x
  3. Step 3: Cross multiply
    81,274,113.36x = 121,882,826.52 × 35,811,107.28
  4. Step 4: Simplify right side
    81,274,113.36x = 4,364,758,976,097,349
  5. Step 5: Solve for x
    x = 4,364,758,976,097,349/81,274,113.36
  6. Step 6: Final answer
    x = 53,704,172.16

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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.