Home / 233,378,442.90-322,062,144.78-128,955,600.81

Finding the Fourth Proportional to 233,378,442.90, 322,062,144.78 and 128,955,600.81

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Solution

The fourth proportional to 233,378,442.90, 322,062,144.78 and 128,955,600.81 is: 177,958,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,378,442.90 : 322,062,144.78 = 128,955,600.81 : x
  2. Step 2: Convert to fraction form
    233,378,442.90/322,062,144.78 = 128,955,600.81/x
  3. Step 3: Cross multiply
    233,378,442.90x = 322,062,144.78 × 128,955,600.81
  4. Step 4: Simplify right side
    233,378,442.90x = 41,531,717,378,262,104
  5. Step 5: Solve for x
    x = 41,531,717,378,262,104/233,378,442.90
  6. Step 6: Final answer
    x = 177,958,670.31

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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.