Home / 2,768,849,715.42-3,821,012,793.68-1,515,786,571.31

Finding the Fourth Proportional to 2,768,849,715.42, 3,821,012,793.68 and 1,515,786,571.31

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Solution

The fourth proportional to 2,768,849,715.42, 3,821,012,793.68 and 1,515,786,571.31 is: 2,091,785,570.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768,849,715.42 : 3,821,012,793.68 = 1,515,786,571.31 : x
  2. Step 2: Convert to fraction form
    2,768,849,715.42/3,821,012,793.68 = 1,515,786,571.31/x
  3. Step 3: Cross multiply
    2,768,849,715.42x = 3,821,012,793.68 × 1,515,786,571.31
  4. Step 4: Simplify right side
    2,768,849,715.42x = 5,791,839,881,437,168,640
  5. Step 5: Solve for x
    x = 5,791,839,881,437,168,640/2,768,849,715.42
  6. Step 6: Final answer
    x = 2,091,785,570.44

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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.