Home / 21,960,389.06-30,305,339.72-12,171,465.21

Finding the Fourth Proportional to 21,960,389.06, 30,305,339.72 and 12,171,465.21

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Solution

The fourth proportional to 21,960,389.06, 30,305,339.72 and 12,171,465.21 is: 16,796,623.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960,389.06 : 30,305,339.72 = 12,171,465.21 : x
  2. Step 2: Convert to fraction form
    21,960,389.06/30,305,339.72 = 12,171,465.21/x
  3. Step 3: Cross multiply
    21,960,389.06x = 30,305,339.72 × 12,171,465.21
  4. Step 4: Simplify right side
    21,960,389.06x = 368,860,388,109,639.81
  5. Step 5: Solve for x
    x = 368,860,388,109,639.81/21,960,389.06
  6. Step 6: Final answer
    x = 16,796,623.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.