Finding the Fourth Proportional to 8,879,873.40, 12,252,912.12 and 5,207,404.68
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Solution
The fourth proportional to 8,879,873.40, 12,252,912.12 and 5,207,404.68 is: 7,185,448.38
Step by Step Solution
- Step 1: Write the proportion equation
8,879,873.40 : 12,252,912.12 = 5,207,404.68 : x - Step 2: Convert to fraction form
8,879,873.40/12,252,912.12 = 5,207,404.68/x - Step 3: Cross multiply
8,879,873.40x = 12,252,912.12 × 5,207,404.68 - Step 4: Simplify right side
8,879,873.40x = 63,805,871,917,316.71 - Step 5: Solve for x
x = 63,805,871,917,316.71/8,879,873.40 - Step 6: Final answer
x = 7,185,448.38
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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.