Home / 1,556,836,480.42-2,148,432,942.04-878,796,182.14

Finding the Fourth Proportional to 1,556,836,480.42, 2,148,432,942.04 and 878,796,182.14

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Solution

The fourth proportional to 1,556,836,480.42, 2,148,432,942.04 and 878,796,182.14 is: 1,212,737,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,836,480.42 : 2,148,432,942.04 = 878,796,182.14 : x
  2. Step 2: Convert to fraction form
    1,556,836,480.42/2,148,432,942.04 = 878,796,182.14/x
  3. Step 3: Cross multiply
    1,556,836,480.42x = 2,148,432,942.04 × 878,796,182.14
  4. Step 4: Simplify right side
    1,556,836,480.42x = 1,888,034,667,040,991,744
  5. Step 5: Solve for x
    x = 1,888,034,667,040,991,744/1,556,836,480.42
  6. Step 6: Final answer
    x = 1,212,737,940.55

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Double scale
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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.