Home / 378,611,012,146.92-567,951,430,604.48-123,641,731,981.39

Finding the Fourth Proportional to 378,611,012,146.92, 567,951,430,604.48 and 123,641,731,981.39

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Solution

The fourth proportional to 378,611,012,146.92, 567,951,430,604.48 and 123,641,731,981.39 is: 185,473,999,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,611,012,146.92 : 567,951,430,604.48 = 123,641,731,981.39 : x
  2. Step 2: Convert to fraction form
    378,611,012,146.92/567,951,430,604.48 = 123,641,731,981.39/x
  3. Step 3: Cross multiply
    378,611,012,146.92x = 567,951,430,604.48 × 123,641,731,981.39
  4. Step 4: Simplify right side
    378,611,012,146.92x = 70,222,498,561,246,132,961,280
  5. Step 5: Solve for x
    x = 70,222,498,561,246,132,961,280/378,611,012,146.92
  6. Step 6: Final answer
    x = 185,473,999,192.60

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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.