Home / 68,593,654,789.21-102,855,153,978.28-30,787,820,131.13

Finding the Fourth Proportional to 68,593,654,789.21, 102,855,153,978.28 and 30,787,820,131.13

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Solution

The fourth proportional to 68,593,654,789.21, 102,855,153,978.28 and 30,787,820,131.13 is: 46,165,873,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,593,654,789.21 : 102,855,153,978.28 = 30,787,820,131.13 : x
  2. Step 2: Convert to fraction form
    68,593,654,789.21/102,855,153,978.28 = 30,787,820,131.13/x
  3. Step 3: Cross multiply
    68,593,654,789.21x = 102,855,153,978.28 × 30,787,820,131.13
  4. Step 4: Simplify right side
    68,593,654,789.21x = 3,166,685,980,242,759,122,944
  5. Step 5: Solve for x
    x = 3,166,685,980,242,759,122,944/68,593,654,789.21
  6. Step 6: Final answer
    x = 46,165,873,359.19

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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.