Home / 1,118,352,879.72-1,543,260,577.86-641,933,183.88

Finding the Fourth Proportional to 1,118,352,879.72, 1,543,260,577.86 and 641,933,183.88

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Solution

The fourth proportional to 1,118,352,879.72, 1,543,260,577.86 and 641,933,183.88 is: 885,829,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,352,879.72 : 1,543,260,577.86 = 641,933,183.88 : x
  2. Step 2: Convert to fraction form
    1,118,352,879.72/1,543,260,577.86 = 641,933,183.88/x
  3. Step 3: Cross multiply
    1,118,352,879.72x = 1,543,260,577.86 × 641,933,183.88
  4. Step 4: Simplify right side
    1,118,352,879.72x = 990,670,176,302,158,336
  5. Step 5: Solve for x
    x = 990,670,176,302,158,336/1,118,352,879.72
  6. Step 6: Final answer
    x = 885,829,682.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.