Home / 12,662,911.98-18,989,715.07-4,351,358.28

Finding the Fourth Proportional to 12,662,911.98, 18,989,715.07 and 4,351,358.28

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Solution

The fourth proportional to 12,662,911.98, 18,989,715.07 and 4,351,358.28 is: 6,525,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662,911.98 : 18,989,715.07 = 4,351,358.28 : x
  2. Step 2: Convert to fraction form
    12,662,911.98/18,989,715.07 = 4,351,358.28/x
  3. Step 3: Cross multiply
    12,662,911.98x = 18,989,715.07 × 4,351,358.28
  4. Step 4: Simplify right side
    12,662,911.98x = 82,631,053,904,685.28
  5. Step 5: Solve for x
    x = 82,631,053,904,685.28/12,662,911.98
  6. Step 6: Final answer
    x = 6,525,438.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.