Home / 228,905,999.20-343,358,998.80-219,977,790.40

Finding the Fourth Proportional to 228,905,999.20, 343,358,998.80 and 219,977,790.40

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Solution

The fourth proportional to 228,905,999.20, 343,358,998.80 and 219,977,790.40 is: 329,966,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,905,999.20 : 343,358,998.80 = 219,977,790.40 : x
  2. Step 2: Convert to fraction form
    228,905,999.20/343,358,998.80 = 219,977,790.40/x
  3. Step 3: Cross multiply
    228,905,999.20x = 343,358,998.80 × 219,977,790.40
  4. Step 4: Simplify right side
    228,905,999.20x = 75,531,353,869,980,256
  5. Step 5: Solve for x
    x = 75,531,353,869,980,256/228,905,999.20
  6. Step 6: Final answer
    x = 329,966,685.60

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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.