Home / 281,503,196.56-422,325,126.10-198,666,688.72

Finding the Fourth Proportional to 281,503,196.56, 422,325,126.10 and 198,666,688.72

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Solution

The fourth proportional to 281,503,196.56, 422,325,126.10 and 198,666,688.72 is: 298,049,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,503,196.56 : 422,325,126.10 = 198,666,688.72 : x
  2. Step 2: Convert to fraction form
    281,503,196.56/422,325,126.10 = 198,666,688.72/x
  3. Step 3: Cross multiply
    281,503,196.56x = 422,325,126.10 × 198,666,688.72
  4. Step 4: Simplify right side
    281,503,196.56x = 83,901,934,364,405,248
  5. Step 5: Solve for x
    x = 83,901,934,364,405,248/281,503,196.56
  6. Step 6: Final answer
    x = 298,049,668.32

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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.