Home / 3,981,312,040.80-5,971,968,061.20-1,396,644,290.40

Finding the Fourth Proportional to 3,981,312,040.80, 5,971,968,061.20 and 1,396,644,290.40

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Solution

The fourth proportional to 3,981,312,040.80, 5,971,968,061.20 and 1,396,644,290.40 is: 2,094,966,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,312,040.80 : 5,971,968,061.20 = 1,396,644,290.40 : x
  2. Step 2: Convert to fraction form
    3,981,312,040.80/5,971,968,061.20 = 1,396,644,290.40/x
  3. Step 3: Cross multiply
    3,981,312,040.80x = 5,971,968,061.20 × 1,396,644,290.40
  4. Step 4: Simplify right side
    3,981,312,040.80x = 8,340,715,095,126,137,856
  5. Step 5: Solve for x
    x = 8,340,715,095,126,137,856/3,981,312,040.80
  6. Step 6: Final answer
    x = 2,094,966,435.60

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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.