Home / 21,382,643.44-29,507,685.78-12,090,069.91

Finding the Fourth Proportional to 21,382,643.44, 29,507,685.78 and 12,090,069.91

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Solution

The fourth proportional to 21,382,643.44, 29,507,685.78 and 12,090,069.91 is: 16,684,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382,643.44 : 29,507,685.78 = 12,090,069.91 : x
  2. Step 2: Convert to fraction form
    21,382,643.44/29,507,685.78 = 12,090,069.91/x
  3. Step 3: Cross multiply
    21,382,643.44x = 29,507,685.78 × 12,090,069.91
  4. Step 4: Simplify right side
    21,382,643.44x = 356,749,983,962,512.88
  5. Step 5: Solve for x
    x = 356,749,983,962,512.88/21,382,643.44
  6. Step 6: Final answer
    x = 16,684,091.70

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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.