Home / 12,109,290,786.86-18,163,418,694.80-4,142,171,435.33

Finding the Fourth Proportional to 12,109,290,786.86, 18,163,418,694.80 and 4,142,171,435.33

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Solution

The fourth proportional to 12,109,290,786.86, 18,163,418,694.80 and 4,142,171,435.33 is: 6,213,080,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,290,786.86 : 18,163,418,694.80 = 4,142,171,435.33 : x
  2. Step 2: Convert to fraction form
    12,109,290,786.86/18,163,418,694.80 = 4,142,171,435.33/x
  3. Step 3: Cross multiply
    12,109,290,786.86x = 18,163,418,694.80 × 4,142,171,435.33
  4. Step 4: Simplify right side
    12,109,290,786.86x = 75,235,994,085,564,153,856
  5. Step 5: Solve for x
    x = 75,235,994,085,564,153,856/12,109,290,786.86
  6. Step 6: Final answer
    x = 6,213,080,139.03

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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.