Finding the Fourth Proportional to 4,696,506.40, 7,042,971.12 and 1,999,129.12
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Solution
The fourth proportional to 4,696,506.40, 7,042,971.12 and 1,999,129.12 is: 2,997,932.39
Step by Step Solution
- Step 1: Write the proportion equation
4,696,506.40 : 7,042,971.12 = 1,999,129.12 : x - Step 2: Convert to fraction form
4,696,506.40/7,042,971.12 = 1,999,129.12/x - Step 3: Cross multiply
4,696,506.40x = 7,042,971.12 × 1,999,129.12 - Step 4: Simplify right side
4,696,506.40x = 14,079,808,657,311.02 - Step 5: Solve for x
x = 14,079,808,657,311.02/4,696,506.40 - Step 6: Final answer
x = 2,997,932.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.