Home / 21,485,880-32,229,709.38-6,339,811.50

Finding the Fourth Proportional to 21,485,880, 32,229,709.38 and 6,339,811.50

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Solution

The fourth proportional to 21,485,880, 32,229,709.38 and 6,339,811.50 is: 9,509,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485,880 : 32,229,709.38 = 6,339,811.50 : x
  2. Step 2: Convert to fraction form
    21,485,880/32,229,709.38 = 6,339,811.50/x
  3. Step 3: Cross multiply
    21,485,880x = 32,229,709.38 × 6,339,811.50
  4. Step 4: Simplify right side
    21,485,880x = 204,330,282,168,981.88
  5. Step 5: Solve for x
    x = 204,330,282,168,981.88/21,485,880
  6. Step 6: Final answer
    x = 9,509,979.68

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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.