Home / 251,615,436,309.70-377,476,161,344.70-81,621,751,729.96

Finding the Fourth Proportional to 251,615,436,309.70, 377,476,161,344.70 and 81,621,751,729.96

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Solution

The fourth proportional to 251,615,436,309.70, 377,476,161,344.70 and 81,621,751,729.96 is: 122,449,822,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,615,436,309.70 : 377,476,161,344.70 = 81,621,751,729.96 : x
  2. Step 2: Convert to fraction form
    251,615,436,309.70/377,476,161,344.70 = 81,621,751,729.96/x
  3. Step 3: Cross multiply
    251,615,436,309.70x = 377,476,161,344.70 × 81,621,751,729.96
  4. Step 4: Simplify right side
    251,615,436,309.70x = 30,810,265,525,253,916,590,080
  5. Step 5: Solve for x
    x = 30,810,265,525,253,916,590,080/251,615,436,309.70
  6. Step 6: Final answer
    x = 122,449,822,543.21

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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.