Home / 222,384,690.64-306,890,341.78-121,912,948.36

Finding the Fourth Proportional to 222,384,690.64, 306,890,341.78 and 121,912,948.36

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Solution

The fourth proportional to 222,384,690.64, 306,890,341.78 and 121,912,948.36 is: 168,239,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,384,690.64 : 306,890,341.78 = 121,912,948.36 : x
  2. Step 2: Convert to fraction form
    222,384,690.64/306,890,341.78 = 121,912,948.36/x
  3. Step 3: Cross multiply
    222,384,690.64x = 306,890,341.78 × 121,912,948.36
  4. Step 4: Simplify right side
    222,384,690.64x = 37,413,906,389,607,888
  5. Step 5: Solve for x
    x = 37,413,906,389,607,888/222,384,690.64
  6. Step 6: Final answer
    x = 168,239,577.47

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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.