Home / 393,778,963,382.22-543,407,885,916.12-222,497,217,402.48

Finding the Fourth Proportional to 393,778,963,382.22, 543,407,885,916.12 and 222,497,217,402.48

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Solution

The fourth proportional to 393,778,963,382.22, 543,407,885,916.12 and 222,497,217,402.48 is: 307,042,157,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,778,963,382.22 : 543,407,885,916.12 = 222,497,217,402.48 : x
  2. Step 2: Convert to fraction form
    393,778,963,382.22/543,407,885,916.12 = 222,497,217,402.48/x
  3. Step 3: Cross multiply
    393,778,963,382.22x = 543,407,885,916.12 × 222,497,217,402.48
  4. Step 4: Simplify right side
    393,778,963,382.22x = 120,906,742,530,901,003,993,088
  5. Step 5: Solve for x
    x = 120,906,742,530,901,003,993,088/393,778,963,382.22
  6. Step 6: Final answer
    x = 307,042,157,591.20

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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.