Home / 393,778,963,398.98-543,407,885,939.22-222,497,217,419.24

Finding the Fourth Proportional to 393,778,963,398.98, 543,407,885,939.22 and 222,497,217,419.24

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Solution

The fourth proportional to 393,778,963,398.98, 543,407,885,939.22 and 222,497,217,419.24 is: 307,042,157,614.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,778,963,398.98 : 543,407,885,939.22 = 222,497,217,419.24 : x
  2. Step 2: Convert to fraction form
    393,778,963,398.98/543,407,885,939.22 = 222,497,217,419.24/x
  3. Step 3: Cross multiply
    393,778,963,398.98x = 543,407,885,939.22 × 222,497,217,419.24
  4. Step 4: Simplify right side
    393,778,963,398.98x = 120,906,742,545,148,199,043,072
  5. Step 5: Solve for x
    x = 120,906,742,545,148,199,043,072/393,778,963,398.98
  6. Step 6: Final answer
    x = 307,042,157,614.31

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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.