Home / 8,121,189,185.71-12,173,186,107.95-2,731,699,233.61

Finding the Fourth Proportional to 8,121,189,185.71, 12,173,186,107.95 and 2,731,699,233.61

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Solution

The fourth proportional to 8,121,189,185.71, 12,173,186,107.95 and 2,731,699,233.61 is: 4,094,656,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,189,185.71 : 12,173,186,107.95 = 2,731,699,233.61 : x
  2. Step 2: Convert to fraction form
    8,121,189,185.71/12,173,186,107.95 = 2,731,699,233.61/x
  3. Step 3: Cross multiply
    8,121,189,185.71x = 12,173,186,107.95 × 2,731,699,233.61
  4. Step 4: Simplify right side
    8,121,189,185.71x = 33,253,483,161,633,542,144
  5. Step 5: Solve for x
    x = 33,253,483,161,633,542,144/8,121,189,185.71
  6. Step 6: Final answer
    x = 4,094,656,878.59

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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.