Home / 30,430,196,029.98-41,976,223,441.77-18,978,883,994.37

Finding the Fourth Proportional to 30,430,196,029.98, 41,976,223,441.77 and 18,978,883,994.37

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Solution

The fourth proportional to 30,430,196,029.98, 41,976,223,441.77 and 18,978,883,994.37 is: 26,179,978,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430,196,029.98 : 41,976,223,441.77 = 18,978,883,994.37 : x
  2. Step 2: Convert to fraction form
    30,430,196,029.98/41,976,223,441.77 = 18,978,883,994.37/x
  3. Step 3: Cross multiply
    30,430,196,029.98x = 41,976,223,441.77 × 18,978,883,994.37
  4. Step 4: Simplify right side
    30,430,196,029.98x = 796,661,875,223,107,338,240
  5. Step 5: Solve for x
    x = 796,661,875,223,107,338,240/30,430,196,029.98
  6. Step 6: Final answer
    x = 26,179,978,414.80

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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.