Home / 78,417,076,809.20-117,625,615,213.80-19,529,162,481.20

Finding the Fourth Proportional to 78,417,076,809.20, 117,625,615,213.80 and 19,529,162,481.20

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Solution

The fourth proportional to 78,417,076,809.20, 117,625,615,213.80 and 19,529,162,481.20 is: 29,293,743,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,417,076,809.20 : 117,625,615,213.80 = 19,529,162,481.20 : x
  2. Step 2: Convert to fraction form
    78,417,076,809.20/117,625,615,213.80 = 19,529,162,481.20/x
  3. Step 3: Cross multiply
    78,417,076,809.20x = 117,625,615,213.80 × 19,529,162,481.20
  4. Step 4: Simplify right side
    78,417,076,809.20x = 2,297,129,751,461,410,897,920
  5. Step 5: Solve for x
    x = 2,297,129,751,461,410,897,920/78,417,076,809.20
  6. Step 6: Final answer
    x = 29,293,743,721.80

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1.5x scale

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.