Home / 378,611,012,146.55-567,951,430,603.90-123,641,731,981.01

Finding the Fourth Proportional to 378,611,012,146.55, 567,951,430,603.90 and 123,641,731,981.01

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Solution

The fourth proportional to 378,611,012,146.55, 567,951,430,603.90 and 123,641,731,981.01 is: 185,473,999,192.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,611,012,146.55 : 567,951,430,603.90 = 123,641,731,981.01 : x
  2. Step 2: Convert to fraction form
    378,611,012,146.55/567,951,430,603.90 = 123,641,731,981.01/x
  3. Step 3: Cross multiply
    378,611,012,146.55x = 567,951,430,603.90 × 123,641,731,981.01
  4. Step 4: Simplify right side
    378,611,012,146.55x = 70,222,498,560,958,605,033,472
  5. Step 5: Solve for x
    x = 70,222,498,560,958,605,033,472/378,611,012,146.55
  6. Step 6: Final answer
    x = 185,473,999,192.02

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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.