Home / 419,153,256,439.66-578,908,629,019.96-281,737,511,163.66

Finding the Fourth Proportional to 419,153,256,439.66, 578,908,629,019.96 and 281,737,511,163.66

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Solution

The fourth proportional to 419,153,256,439.66, 578,908,629,019.96 and 281,737,511,163.66 is: 389,118,475,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,153,256,439.66 : 578,908,629,019.96 = 281,737,511,163.66 : x
  2. Step 2: Convert to fraction form
    419,153,256,439.66/578,908,629,019.96 = 281,737,511,163.66/x
  3. Step 3: Cross multiply
    419,153,256,439.66x = 578,908,629,019.96 × 281,737,511,163.66
  4. Step 4: Simplify right side
    419,153,256,439.66x = 163,100,276,331,250,075,041,792
  5. Step 5: Solve for x
    x = 163,100,276,331,250,075,041,792/419,153,256,439.66
  6. Step 6: Final answer
    x = 389,118,475,940.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.