Finding the Fourth Proportional to 11,506,464.56, 15,879,257.74 and 6,279,807.96
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Solution
The fourth proportional to 11,506,464.56, 15,879,257.74 and 6,279,807.96 is: 8,666,318.70
Step by Step Solution
- Step 1: Write the proportion equation
11,506,464.56 : 15,879,257.74 = 6,279,807.96 : x - Step 2: Convert to fraction form
11,506,464.56/15,879,257.74 = 6,279,807.96/x - Step 3: Cross multiply
11,506,464.56x = 15,879,257.74 × 6,279,807.96 - Step 4: Simplify right side
11,506,464.56x = 99,718,689,043,748.28 - Step 5: Solve for x
x = 99,718,689,043,748.28/11,506,464.56 - Step 6: Final answer
x = 8,666,318.70
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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.