Home / 222,539,110.70-307,063,366.28-128,418,921.26

Finding the Fourth Proportional to 222,539,110.70, 307,063,366.28 and 128,418,921.26

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Solution

The fourth proportional to 222,539,110.70, 307,063,366.28 and 128,418,921.26 is: 177,194,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,539,110.70 : 307,063,366.28 = 128,418,921.26 : x
  2. Step 2: Convert to fraction form
    222,539,110.70/307,063,366.28 = 128,418,921.26/x
  3. Step 3: Cross multiply
    222,539,110.70x = 307,063,366.28 × 128,418,921.26
  4. Step 4: Simplify right side
    222,539,110.70x = 39,432,746,256,141,856
  5. Step 5: Solve for x
    x = 39,432,746,256,141,856/222,539,110.70
  6. Step 6: Final answer
    x = 177,194,678.87

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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.