Home / 209,765,880.36-289,385,081.76-200,040,510

Finding the Fourth Proportional to 209,765,880.36, 289,385,081.76 and 200,040,510

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Solution

The fourth proportional to 209,765,880.36, 289,385,081.76 and 200,040,510 is: 275,968,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,880.36 : 289,385,081.76 = 200,040,510 : x
  2. Step 2: Convert to fraction form
    209,765,880.36/289,385,081.76 = 200,040,510/x
  3. Step 3: Cross multiply
    209,765,880.36x = 289,385,081.76 × 200,040,510
  4. Step 4: Simplify right side
    209,765,880.36x = 57,888,739,341,662,096
  5. Step 5: Solve for x
    x = 57,888,739,341,662,096/209,765,880.36
  6. Step 6: Final answer
    x = 275,968,328.32

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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.