Finding the Fourth Proportional to 98,996,733.20, 136,613,436.84 and 54,941,173.40
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Solution
The fourth proportional to 98,996,733.20, 136,613,436.84 and 54,941,173.40 is: 75,817,678.82
Step by Step Solution
- Step 1: Write the proportion equation
98,996,733.20 : 136,613,436.84 = 54,941,173.40 : x - Step 2: Convert to fraction form
98,996,733.20/136,613,436.84 = 54,941,173.40/x - Step 3: Cross multiply
98,996,733.20x = 136,613,436.84 × 54,941,173.40 - Step 4: Simplify right side
98,996,733.20x = 7,505,702,522,196,388 - Step 5: Solve for x
x = 7,505,702,522,196,388/98,996,733.20 - Step 6: Final answer
x = 75,817,678.82
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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.