Home / 12,920,540.40-19,379,255.40-5,346,716.40

Finding the Fourth Proportional to 12,920,540.40, 19,379,255.40 and 5,346,716.40

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Solution

The fourth proportional to 12,920,540.40, 19,379,255.40 and 5,346,716.40 is: 8,019,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,540.40 : 19,379,255.40 = 5,346,716.40 : x
  2. Step 2: Convert to fraction form
    12,920,540.40/19,379,255.40 = 5,346,716.40/x
  3. Step 3: Cross multiply
    12,920,540.40x = 19,379,255.40 × 5,346,716.40
  4. Step 4: Simplify right side
    12,920,540.40x = 103,615,382,666,968.56
  5. Step 5: Solve for x
    x = 103,615,382,666,968.56/12,920,540.40
  6. Step 6: Final answer
    x = 8,019,431.03

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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.