Home / 30,430,195,542.17-41,976,222,771.48-18,978,883,508.29

Finding the Fourth Proportional to 30,430,195,542.17, 41,976,222,771.48 and 18,978,883,508.29

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Solution

The fourth proportional to 30,430,195,542.17, 41,976,222,771.48 and 18,978,883,508.29 is: 26,179,977,745.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430,195,542.17 : 41,976,222,771.48 = 18,978,883,508.29 : x
  2. Step 2: Convert to fraction form
    30,430,195,542.17/41,976,222,771.48 = 18,978,883,508.29/x
  3. Step 3: Cross multiply
    30,430,195,542.17x = 41,976,222,771.48 × 18,978,883,508.29
  4. Step 4: Simplify right side
    30,430,195,542.17x = 796,661,842,097,948,983,296
  5. Step 5: Solve for x
    x = 796,661,842,097,948,983,296/30,430,195,542.17
  6. Step 6: Final answer
    x = 26,179,977,745.92

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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.