Home / 3,106,153.85-4,286,668.74-1,866,143.48

Finding the Fourth Proportional to 3,106,153.85, 4,286,668.74 and 1,866,143.48

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Solution

The fourth proportional to 3,106,153.85, 4,286,668.74 and 1,866,143.48 is: 2,575,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106,153.85 : 4,286,668.74 = 1,866,143.48 : x
  2. Step 2: Convert to fraction form
    3,106,153.85/4,286,668.74 = 1,866,143.48/x
  3. Step 3: Cross multiply
    3,106,153.85x = 4,286,668.74 × 1,866,143.48
  4. Step 4: Simplify right side
    3,106,153.85x = 7,999,538,891,639.43
  5. Step 5: Solve for x
    x = 7,999,538,891,639.43/3,106,153.85
  6. Step 6: Final answer
    x = 2,575,383.99

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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.