Finding the Fourth Proportional to 8,118,508.81, 11,203,555.67 and 4,447,345.35
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Solution
The fourth proportional to 8,118,508.81, 11,203,555.67 and 4,447,345.35 is: 6,137,343.99
Step by Step Solution
- Step 1: Write the proportion equation
8,118,508.81 : 11,203,555.67 = 4,447,345.35 : x - Step 2: Convert to fraction form
8,118,508.81/11,203,555.67 = 4,447,345.35/x - Step 3: Cross multiply
8,118,508.81x = 11,203,555.67 × 4,447,345.35 - Step 4: Simplify right side
8,118,508.81x = 49,826,081,212,440.63 - Step 5: Solve for x
x = 49,826,081,212,440.63/8,118,508.81 - Step 6: Final answer
x = 6,137,343.99
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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.