Home / 869,080,003.60-1,303,620,005.40-378,028,519.60

Finding the Fourth Proportional to 869,080,003.60, 1,303,620,005.40 and 378,028,519.60

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Solution

The fourth proportional to 869,080,003.60, 1,303,620,005.40 and 378,028,519.60 is: 567,042,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,080,003.60 : 1,303,620,005.40 = 378,028,519.60 : x
  2. Step 2: Convert to fraction form
    869,080,003.60/1,303,620,005.40 = 378,028,519.60/x
  3. Step 3: Cross multiply
    869,080,003.60x = 1,303,620,005.40 × 378,028,519.60
  4. Step 4: Simplify right side
    869,080,003.60x = 492,805,540,762,306,048
  5. Step 5: Solve for x
    x = 492,805,540,762,306,048/869,080,003.60
  6. Step 6: Final answer
    x = 567,042,779.40

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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.