Home / 222,539,112.20-307,063,368.36-128,418,922.76

Finding the Fourth Proportional to 222,539,112.20, 307,063,368.36 and 128,418,922.76

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Solution

The fourth proportional to 222,539,112.20, 307,063,368.36 and 128,418,922.76 is: 177,194,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,539,112.20 : 307,063,368.36 = 128,418,922.76 : x
  2. Step 2: Convert to fraction form
    222,539,112.20/307,063,368.36 = 128,418,922.76/x
  3. Step 3: Cross multiply
    222,539,112.20x = 307,063,368.36 × 128,418,922.76
  4. Step 4: Simplify right side
    222,539,112.20x = 39,432,746,983,848,272
  5. Step 5: Solve for x
    x = 39,432,746,983,848,272/222,539,112.20
  6. Step 6: Final answer
    x = 177,194,680.94

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1.5x scale

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.