Home / 12,821,898.88-17,694,225.12-7,021,048.24

Finding the Fourth Proportional to 12,821,898.88, 17,694,225.12 and 7,021,048.24

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Solution

The fourth proportional to 12,821,898.88, 17,694,225.12 and 7,021,048.24 is: 9,689,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821,898.88 : 17,694,225.12 = 7,021,048.24 : x
  2. Step 2: Convert to fraction form
    12,821,898.88/17,694,225.12 = 7,021,048.24/x
  3. Step 3: Cross multiply
    12,821,898.88x = 17,694,225.12 × 7,021,048.24
  4. Step 4: Simplify right side
    12,821,898.88x = 124,232,008,136,939.80
  5. Step 5: Solve for x
    x = 124,232,008,136,939.80/12,821,898.88
  6. Step 6: Final answer
    x = 9,689,049.13

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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.