Finding the Fourth Proportional to 8,143,315.08, 11,242,137.59 and 6,278,657.95
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Solution
The fourth proportional to 8,143,315.08, 11,242,137.59 and 6,278,657.95 is: 8,667,911.76
Step by Step Solution
- Step 1: Write the proportion equation
8,143,315.08 : 11,242,137.59 = 6,278,657.95 : x - Step 2: Convert to fraction form
8,143,315.08/11,242,137.59 = 6,278,657.95/x - Step 3: Cross multiply
8,143,315.08x = 11,242,137.59 × 6,278,657.95 - Step 4: Simplify right side
8,143,315.08x = 70,585,536,554,447.34 - Step 5: Solve for x
x = 70,585,536,554,447.34/8,143,315.08 - Step 6: Final answer
x = 8,667,911.76
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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.