Finding the Fourth Proportional to 18,575,259.49, 27,866,236.71 and 7,643,518.12
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Solution
The fourth proportional to 18,575,259.49, 27,866,236.71 and 7,643,518.12 is: 11,466,654.63
Step by Step Solution
- Step 1: Write the proportion equation
18,575,259.49 : 27,866,236.71 = 7,643,518.12 : x - Step 2: Convert to fraction form
18,575,259.49/27,866,236.71 = 7,643,518.12/x - Step 3: Cross multiply
18,575,259.49x = 27,866,236.71 × 7,643,518.12 - Step 4: Simplify right side
18,575,259.49x = 212,996,085,292,590.19 - Step 5: Solve for x
x = 212,996,085,292,590.19/18,575,259.49 - Step 6: Final answer
x = 11,466,654.63
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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.