Home / 12,568,208,666.91-18,854,250,102.81-4,285,158,612.09

Finding the Fourth Proportional to 12,568,208,666.91, 18,854,250,102.81 and 4,285,158,612.09

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Solution

The fourth proportional to 12,568,208,666.91, 18,854,250,102.81 and 4,285,158,612.09 is: 6,428,398,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568,208,666.91 : 18,854,250,102.81 = 4,285,158,612.09 : x
  2. Step 2: Convert to fraction form
    12,568,208,666.91/18,854,250,102.81 = 4,285,158,612.09/x
  3. Step 3: Cross multiply
    12,568,208,666.91x = 18,854,250,102.81 × 4,285,158,612.09
  4. Step 4: Simplify right side
    12,568,208,666.91x = 80,793,452,202,555,047,936
  5. Step 5: Solve for x
    x = 80,793,452,202,555,047,936/12,568,208,666.91
  6. Step 6: Final answer
    x = 6,428,398,377.51

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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.