Home / 12,078,774.50-16,668,825.45-6,646,383.14

Finding the Fourth Proportional to 12,078,774.50, 16,668,825.45 and 6,646,383.14

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Solution

The fourth proportional to 12,078,774.50, 16,668,825.45 and 6,646,383.14 is: 9,172,072.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,774.50 : 16,668,825.45 = 6,646,383.14 : x
  2. Step 2: Convert to fraction form
    12,078,774.50/16,668,825.45 = 6,646,383.14/x
  3. Step 3: Cross multiply
    12,078,774.50x = 16,668,825.45 × 6,646,383.14
  4. Step 4: Simplify right side
    12,078,774.50x = 110,787,400,434,482.91
  5. Step 5: Solve for x
    x = 110,787,400,434,482.91/12,078,774.50
  6. Step 6: Final answer
    x = 9,172,072.91

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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.