Home / 393,778,963,381.22-543,407,885,914.74-222,497,217,401.48

Finding the Fourth Proportional to 393,778,963,381.22, 543,407,885,914.74 and 222,497,217,401.48

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Solution

The fourth proportional to 393,778,963,381.22, 543,407,885,914.74 and 222,497,217,401.48 is: 307,042,157,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,778,963,381.22 : 543,407,885,914.74 = 222,497,217,401.48 : x
  2. Step 2: Convert to fraction form
    393,778,963,381.22/543,407,885,914.74 = 222,497,217,401.48/x
  3. Step 3: Cross multiply
    393,778,963,381.22x = 543,407,885,914.74 × 222,497,217,401.48
  4. Step 4: Simplify right side
    393,778,963,381.22x = 120,906,742,530,050,550,136,832
  5. Step 5: Solve for x
    x = 120,906,742,530,050,550,136,832/393,778,963,381.22
  6. Step 6: Final answer
    x = 307,042,157,589.82

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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.