Home / 326,601,007.40-489,334,640.70-211,526,316.20

Finding the Fourth Proportional to 326,601,007.40, 489,334,640.70 and 211,526,316.20

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Solution

The fourth proportional to 326,601,007.40, 489,334,640.70 and 211,526,316.20 is: 316,922,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,601,007.40 : 489,334,640.70 = 211,526,316.20 : x
  2. Step 2: Convert to fraction form
    326,601,007.40/489,334,640.70 = 211,526,316.20/x
  3. Step 3: Cross multiply
    326,601,007.40x = 489,334,640.70 × 211,526,316.20
  4. Step 4: Simplify right side
    326,601,007.40x = 103,507,153,936,321,584
  5. Step 5: Solve for x
    x = 103,507,153,936,321,584/326,601,007.40
  6. Step 6: Final answer
    x = 316,922,335.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.