Finding the Fourth Proportional to 18,553,159.52, 27,821,580.96 and 7,615,839.68
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Solution
The fourth proportional to 18,553,159.52, 27,821,580.96 and 7,615,839.68 is: 11,420,410.63
Step by Step Solution
- Step 1: Write the proportion equation
18,553,159.52 : 27,821,580.96 = 7,615,839.68 : x - Step 2: Convert to fraction form
18,553,159.52/27,821,580.96 = 7,615,839.68/x - Step 3: Cross multiply
18,553,159.52x = 27,821,580.96 × 7,615,839.68 - Step 4: Simplify right side
18,553,159.52x = 211,884,700,235,500.50 - Step 5: Solve for x
x = 211,884,700,235,500.50/18,553,159.52 - Step 6: Final answer
x = 11,420,410.63
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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.