Home / 5,214,977,164.80-7,822,465,747.20-3,990,537,100.80

Finding the Fourth Proportional to 5,214,977,164.80, 7,822,465,747.20 and 3,990,537,100.80

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Solution

The fourth proportional to 5,214,977,164.80, 7,822,465,747.20 and 3,990,537,100.80 is: 5,985,805,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214,977,164.80 : 7,822,465,747.20 = 3,990,537,100.80 : x
  2. Step 2: Convert to fraction form
    5,214,977,164.80/7,822,465,747.20 = 3,990,537,100.80/x
  3. Step 3: Cross multiply
    5,214,977,164.80x = 7,822,465,747.20 × 3,990,537,100.80
  4. Step 4: Simplify right side
    5,214,977,164.80x = 31,215,839,783,938,793,472
  5. Step 5: Solve for x
    x = 31,215,839,783,938,793,472/5,214,977,164.80
  6. Step 6: Final answer
    x = 5,985,805,651.20

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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.