Finding the Fourth Proportional to 6,478,630.56, 8,940,577.68 and 3,578,095.08
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Solution
The fourth proportional to 6,478,630.56, 8,940,577.68 and 3,578,095.08 is: 4,937,808.49
Step by Step Solution
- Step 1: Write the proportion equation
6,478,630.56 : 8,940,577.68 = 3,578,095.08 : x - Step 2: Convert to fraction form
6,478,630.56/8,940,577.68 = 3,578,095.08/x - Step 3: Cross multiply
6,478,630.56x = 8,940,577.68 × 3,578,095.08 - Step 4: Simplify right side
6,478,630.56x = 31,990,237,009,165.81 - Step 5: Solve for x
x = 31,990,237,009,165.81/6,478,630.56 - Step 6: Final answer
x = 4,937,808.49
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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.