Home / 2,122,065,866.42-2,928,382,219.74-1,217,970,613.23

Finding the Fourth Proportional to 2,122,065,866.42, 2,928,382,219.74 and 1,217,970,613.23

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Solution

The fourth proportional to 2,122,065,866.42, 2,928,382,219.74 and 1,217,970,613.23 is: 1,680,760,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122,065,866.42 : 2,928,382,219.74 = 1,217,970,613.23 : x
  2. Step 2: Convert to fraction form
    2,122,065,866.42/2,928,382,219.74 = 1,217,970,613.23/x
  3. Step 3: Cross multiply
    2,122,065,866.42x = 2,928,382,219.74 × 1,217,970,613.23
  4. Step 4: Simplify right side
    2,122,065,866.42x = 3,566,683,487,948,556,288
  5. Step 5: Solve for x
    x = 3,566,683,487,948,556,288/2,122,065,866.42
  6. Step 6: Final answer
    x = 1,680,760,029.36

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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.