Home / 253,468,223,999.70-380,202,335,999.55-212,556,620,361.30

Finding the Fourth Proportional to 253,468,223,999.70, 380,202,335,999.55 and 212,556,620,361.30

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Solution

The fourth proportional to 253,468,223,999.70, 380,202,335,999.55 and 212,556,620,361.30 is: 318,834,930,541.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,468,223,999.70 : 380,202,335,999.55 = 212,556,620,361.30 : x
  2. Step 2: Convert to fraction form
    253,468,223,999.70/380,202,335,999.55 = 212,556,620,361.30/x
  3. Step 3: Cross multiply
    253,468,223,999.70x = 380,202,335,999.55 × 212,556,620,361.30
  4. Step 4: Simplify right side
    253,468,223,999.70x = 80,814,523,593,535,766,134,784
  5. Step 5: Solve for x
    x = 80,814,523,593,535,766,134,784/253,468,223,999.70
  6. Step 6: Final answer
    x = 318,834,930,541.95

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1.5x scale

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.