Finding the Fourth Proportional to 18,371,959.64, 27,558,013.77 and 7,442,355.99
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Solution
The fourth proportional to 18,371,959.64, 27,558,013.77 and 7,442,355.99 is: 11,163,564.08
Step by Step Solution
- Step 1: Write the proportion equation
18,371,959.64 : 27,558,013.77 = 7,442,355.99 : x - Step 2: Convert to fraction form
18,371,959.64/27,558,013.77 = 7,442,355.99/x - Step 3: Cross multiply
18,371,959.64x = 27,558,013.77 × 7,442,355.99 - Step 4: Simplify right side
18,371,959.64x = 205,096,548,781,062.81 - Step 5: Solve for x
x = 205,096,548,781,062.81/18,371,959.64 - Step 6: Final answer
x = 11,163,564.08
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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.