Home / 213,359,969.80-320,039,954.70-209,958,747.40

Finding the Fourth Proportional to 213,359,969.80, 320,039,954.70 and 209,958,747.40

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Solution

The fourth proportional to 213,359,969.80, 320,039,954.70 and 209,958,747.40 is: 314,938,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,359,969.80 : 320,039,954.70 = 209,958,747.40 : x
  2. Step 2: Convert to fraction form
    213,359,969.80/320,039,954.70 = 209,958,747.40/x
  3. Step 3: Cross multiply
    213,359,969.80x = 320,039,954.70 × 209,958,747.40
  4. Step 4: Simplify right side
    213,359,969.80x = 67,195,188,006,764,744
  5. Step 5: Solve for x
    x = 67,195,188,006,764,744/213,359,969.80
  6. Step 6: Final answer
    x = 314,938,121.10

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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.