Home / 12,310,383.44-16,990,438.72-7,156,734.40

Finding the Fourth Proportional to 12,310,383.44, 16,990,438.72 and 7,156,734.40

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Solution

The fourth proportional to 12,310,383.44, 16,990,438.72 and 7,156,734.40 is: 9,877,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310,383.44 : 16,990,438.72 = 7,156,734.40 : x
  2. Step 2: Convert to fraction form
    12,310,383.44/16,990,438.72 = 7,156,734.40/x
  3. Step 3: Cross multiply
    12,310,383.44x = 16,990,438.72 × 7,156,734.40
  4. Step 4: Simplify right side
    12,310,383.44x = 121,596,057,258,515.97
  5. Step 5: Solve for x
    x = 121,596,057,258,515.97/12,310,383.44
  6. Step 6: Final answer
    x = 9,877,519.89

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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.