Home / 209,808,016.80-314,995,460.40-133,280,512.80

Finding the Fourth Proportional to 209,808,016.80, 314,995,460.40 and 133,280,512.80

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Solution

The fourth proportional to 209,808,016.80, 314,995,460.40 and 133,280,512.80 is: 200,100,821.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,808,016.80 : 314,995,460.40 = 133,280,512.80 : x
  2. Step 2: Convert to fraction form
    209,808,016.80/314,995,460.40 = 133,280,512.80/x
  3. Step 3: Cross multiply
    209,808,016.80x = 314,995,460.40 × 133,280,512.80
  4. Step 4: Simplify right side
    209,808,016.80x = 41,982,756,491,784,088
  5. Step 5: Solve for x
    x = 41,982,756,491,784,088/209,808,016.80
  6. Step 6: Final answer
    x = 200,100,821.37

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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.