Finding the Fourth Proportional to 105,150,183.08, 145,112,823.80 and 63,347,407.70
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Solution
The fourth proportional to 105,150,183.08, 145,112,823.80 and 63,347,407.70 is: 87,422,778.95
Step by Step Solution
- Step 1: Write the proportion equation
105,150,183.08 : 145,112,823.80 = 63,347,407.70 : x - Step 2: Convert to fraction form
105,150,183.08/145,112,823.80 = 63,347,407.70/x - Step 3: Cross multiply
105,150,183.08x = 145,112,823.80 × 63,347,407.70 - Step 4: Simplify right side
105,150,183.08x = 9,192,521,211,756,864 - Step 5: Solve for x
x = 9,192,521,211,756,864/105,150,183.08 - Step 6: Final answer
x = 87,422,778.95
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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.