Home / 12,189,400.71-16,821,509.79-6,963,100.89

Finding the Fourth Proportional to 12,189,400.71, 16,821,509.79 and 6,963,100.89

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Solution

The fourth proportional to 12,189,400.71, 16,821,509.79 and 6,963,100.89 is: 9,609,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,400.71 : 16,821,509.79 = 6,963,100.89 : x
  2. Step 2: Convert to fraction form
    12,189,400.71/16,821,509.79 = 6,963,100.89/x
  3. Step 3: Cross multiply
    12,189,400.71x = 16,821,509.79 × 6,963,100.89
  4. Step 4: Simplify right side
    12,189,400.71x = 117,129,869,789,892.70
  5. Step 5: Solve for x
    x = 117,129,869,789,892.70/12,189,400.71
  6. Step 6: Final answer
    x = 9,609,157.38

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1.5x scale

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.