Home / 8,139,647,812.30-12,210,367,513.65-2,970,909,508.30

Finding the Fourth Proportional to 8,139,647,812.30, 12,210,367,513.65 and 2,970,909,508.30

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Solution

The fourth proportional to 8,139,647,812.30, 12,210,367,513.65 and 2,970,909,508.30 is: 4,456,691,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139,647,812.30 : 12,210,367,513.65 = 2,970,909,508.30 : x
  2. Step 2: Convert to fraction form
    8,139,647,812.30/12,210,367,513.65 = 2,970,909,508.30/x
  3. Step 3: Cross multiply
    8,139,647,812.30x = 12,210,367,513.65 × 2,970,909,508.30
  4. Step 4: Simplify right side
    8,139,647,812.30x = 36,275,896,946,140,217,344
  5. Step 5: Solve for x
    x = 36,275,896,946,140,217,344/8,139,647,812.30
  6. Step 6: Final answer
    x = 4,456,691,220.88

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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.