Finding the Fourth Proportional to 11,512,312.63, 15,886,909.18 and 6,285,320.63
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Solution
The fourth proportional to 11,512,312.63, 15,886,909.18 and 6,285,320.63 is: 8,673,697.56
Step by Step Solution
- Step 1: Write the proportion equation
11,512,312.63 : 15,886,909.18 = 6,285,320.63 : x - Step 2: Convert to fraction form
11,512,312.63/15,886,909.18 = 6,285,320.63/x - Step 3: Cross multiply
11,512,312.63x = 15,886,909.18 × 6,285,320.63 - Step 4: Simplify right side
11,512,312.63x = 99,854,318,000,277.08 - Step 5: Solve for x
x = 99,854,318,000,277.08/11,512,312.63 - Step 6: Final answer
x = 8,673,697.56
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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.