Home / 12,309,329.88-16,985,985.66-6,802,638.84

Finding the Fourth Proportional to 12,309,329.88, 16,985,985.66 and 6,802,638.84

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Solution

The fourth proportional to 12,309,329.88, 16,985,985.66 and 6,802,638.84 is: 9,387,149.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309,329.88 : 16,985,985.66 = 6,802,638.84 : x
  2. Step 2: Convert to fraction form
    12,309,329.88/16,985,985.66 = 6,802,638.84/x
  3. Step 3: Cross multiply
    12,309,329.88x = 16,985,985.66 × 6,802,638.84
  4. Step 4: Simplify right side
    12,309,329.88x = 115,549,525,786,399.03
  5. Step 5: Solve for x
    x = 115,549,525,786,399.03/12,309,329.88
  6. Step 6: Final answer
    x = 9,387,149.98

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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.