Home / 217,619,999.40-326,429,999.10-148,745,245.80

Finding the Fourth Proportional to 217,619,999.40, 326,429,999.10 and 148,745,245.80

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Solution

The fourth proportional to 217,619,999.40, 326,429,999.10 and 148,745,245.80 is: 223,117,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,619,999.40 : 326,429,999.10 = 148,745,245.80 : x
  2. Step 2: Convert to fraction form
    217,619,999.40/326,429,999.10 = 148,745,245.80/x
  3. Step 3: Cross multiply
    217,619,999.40x = 326,429,999.10 × 148,745,245.80
  4. Step 4: Simplify right side
    217,619,999.40x = 48,554,910,452,623,288
  5. Step 5: Solve for x
    x = 48,554,910,452,623,288/217,619,999.40
  6. Step 6: Final answer
    x = 223,117,868.70

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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.