Home / 8,139,647,764.80-12,210,367,442.40-2,970,909,460.80

Finding the Fourth Proportional to 8,139,647,764.80, 12,210,367,442.40 and 2,970,909,460.80

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Solution

The fourth proportional to 8,139,647,764.80, 12,210,367,442.40 and 2,970,909,460.80 is: 4,456,691,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139,647,764.80 : 12,210,367,442.40 = 2,970,909,460.80 : x
  2. Step 2: Convert to fraction form
    8,139,647,764.80/12,210,367,442.40 = 2,970,909,460.80/x
  3. Step 3: Cross multiply
    8,139,647,764.80x = 12,210,367,442.40 × 2,970,909,460.80
  4. Step 4: Simplify right side
    8,139,647,764.80x = 36,275,896,154,470,461,440
  5. Step 5: Solve for x
    x = 36,275,896,154,470,461,440/8,139,647,764.80
  6. Step 6: Final answer
    x = 4,456,691,149.63

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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.