Home / 213,355,372.80-320,033,059.20-204,397,420.80

Finding the Fourth Proportional to 213,355,372.80, 320,033,059.20 and 204,397,420.80

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Solution

The fourth proportional to 213,355,372.80, 320,033,059.20 and 204,397,420.80 is: 306,596,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,355,372.80 : 320,033,059.20 = 204,397,420.80 : x
  2. Step 2: Convert to fraction form
    213,355,372.80/320,033,059.20 = 204,397,420.80/x
  3. Step 3: Cross multiply
    213,355,372.80x = 320,033,059.20 × 204,397,420.80
  4. Step 4: Simplify right side
    213,355,372.80x = 65,413,931,871,213,712
  5. Step 5: Solve for x
    x = 65,413,931,871,213,712/213,355,372.80
  6. Step 6: Final answer
    x = 306,596,131.20

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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.