Home / 2,656,990,813.80-3,985,866,570.78-816,897,976.68

Finding the Fourth Proportional to 2,656,990,813.80, 3,985,866,570.78 and 816,897,976.68

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Solution

The fourth proportional to 2,656,990,813.80, 3,985,866,570.78 and 816,897,976.68 is: 1,225,463,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656,990,813.80 : 3,985,866,570.78 = 816,897,976.68 : x
  2. Step 2: Convert to fraction form
    2,656,990,813.80/3,985,866,570.78 = 816,897,976.68/x
  3. Step 3: Cross multiply
    2,656,990,813.80x = 3,985,866,570.78 × 816,897,976.68
  4. Step 4: Simplify right side
    2,656,990,813.80x = 3,256,046,336,986,632,192
  5. Step 5: Solve for x
    x = 3,256,046,336,986,632,192/2,656,990,813.80
  6. Step 6: Final answer
    x = 1,225,463,904.53

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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.