Home / 221,227,999.20-309,145,242.60-221,227,999.20

Finding the Fourth Proportional to 221,227,999.20, 309,145,242.60 and 221,227,999.20

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Solution

The fourth proportional to 221,227,999.20, 309,145,242.60 and 221,227,999.20 is: 309,145,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,227,999.20 : 309,145,242.60 = 221,227,999.20 : x
  2. Step 2: Convert to fraction form
    221,227,999.20/309,145,242.60 = 221,227,999.20/x
  3. Step 3: Cross multiply
    221,227,999.20x = 309,145,242.60 × 221,227,999.20
  4. Step 4: Simplify right side
    221,227,999.20x = 68,391,583,482,596,608
  5. Step 5: Solve for x
    x = 68,391,583,482,596,608/221,227,999.20
  6. Step 6: Final answer
    x = 309,145,242.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.