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Finding the Fourth Proportional to 1,800,879,303.88, 2,699,446,125.66 and 696,242,866.60

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Solution

The fourth proportional to 1,800,879,303.88, 2,699,446,125.66 and 696,242,866.60 is: 1,043,640,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800,879,303.88 : 2,699,446,125.66 = 696,242,866.60 : x
  2. Step 2: Convert to fraction form
    1,800,879,303.88/2,699,446,125.66 = 696,242,866.60/x
  3. Step 3: Cross multiply
    1,800,879,303.88x = 2,699,446,125.66 × 696,242,866.60
  4. Step 4: Simplify right side
    1,800,879,303.88x = 1,879,470,108,761,782,272
  5. Step 5: Solve for x
    x = 1,879,470,108,761,782,272/1,800,879,303.88
  6. Step 6: Final answer
    x = 1,043,640,239.92

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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.