Home / 231,336,003.40-347,004,005.10-221,132,336.20

Finding the Fourth Proportional to 231,336,003.40, 347,004,005.10 and 221,132,336.20

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Solution

The fourth proportional to 231,336,003.40, 347,004,005.10 and 221,132,336.20 is: 331,698,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,336,003.40 : 347,004,005.10 = 221,132,336.20 : x
  2. Step 2: Convert to fraction form
    231,336,003.40/347,004,005.10 = 221,132,336.20/x
  3. Step 3: Cross multiply
    231,336,003.40x = 347,004,005.10 × 221,132,336.20
  4. Step 4: Simplify right side
    231,336,003.40x = 76,733,806,318,519,712
  5. Step 5: Solve for x
    x = 76,733,806,318,519,712/231,336,003.40
  6. Step 6: Final answer
    x = 331,698,504.30

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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.