Home / 209,628,193.80-314,725,725.90-133,100,689.80

Finding the Fourth Proportional to 209,628,193.80, 314,725,725.90 and 133,100,689.80

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Solution

The fourth proportional to 209,628,193.80, 314,725,725.90 and 133,100,689.80 is: 199,830,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,628,193.80 : 314,725,725.90 = 133,100,689.80 : x
  2. Step 2: Convert to fraction form
    209,628,193.80/314,725,725.90 = 133,100,689.80/x
  3. Step 3: Cross multiply
    209,628,193.80x = 314,725,725.90 × 133,100,689.80
  4. Step 4: Simplify right side
    209,628,193.80x = 41,890,211,215,095,720
  5. Step 5: Solve for x
    x = 41,890,211,215,095,720/209,628,193.80
  6. Step 6: Final answer
    x = 199,830,998.19

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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.