Home / 384,371,999.20-576,557,998.80-380,788,818.40

Finding the Fourth Proportional to 384,371,999.20, 576,557,998.80 and 380,788,818.40

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Solution

The fourth proportional to 384,371,999.20, 576,557,998.80 and 380,788,818.40 is: 571,183,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,371,999.20 : 576,557,998.80 = 380,788,818.40 : x
  2. Step 2: Convert to fraction form
    384,371,999.20/576,557,998.80 = 380,788,818.40/x
  3. Step 3: Cross multiply
    384,371,999.20x = 576,557,998.80 × 380,788,818.40
  4. Step 4: Simplify right side
    384,371,999.20x = 219,546,839,102,120,576
  5. Step 5: Solve for x
    x = 219,546,839,102,120,576/384,371,999.20
  6. Step 6: Final answer
    x = 571,183,227.60

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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.