Home / 298,943,602.20-446,980,512.60-221,459,504.40

Finding the Fourth Proportional to 298,943,602.20, 446,980,512.60 and 221,459,504.40

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Solution

The fourth proportional to 298,943,602.20, 446,980,512.60 and 221,459,504.40 is: 331,126,279.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,943,602.20 : 446,980,512.60 = 221,459,504.40 : x
  2. Step 2: Convert to fraction form
    298,943,602.20/446,980,512.60 = 221,459,504.40/x
  3. Step 3: Cross multiply
    298,943,602.20x = 446,980,512.60 × 221,459,504.40
  4. Step 4: Simplify right side
    298,943,602.20x = 98,988,082,796,853,968
  5. Step 5: Solve for x
    x = 98,988,082,796,853,968/298,943,602.20
  6. Step 6: Final answer
    x = 331,126,279.57

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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.