Finding the Fourth Proportional to 98,169,070.99, 135,474,252.26 and 54,117,649.78
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Solution
The fourth proportional to 98,169,070.99, 135,474,252.26 and 54,117,649.78 is: 74,682,871.75
Step by Step Solution
- Step 1: Write the proportion equation
98,169,070.99 : 135,474,252.26 = 54,117,649.78 : x - Step 2: Convert to fraction form
98,169,070.99/135,474,252.26 = 54,117,649.78/x - Step 3: Cross multiply
98,169,070.99x = 135,474,252.26 × 54,117,649.78 - Step 4: Simplify right side
98,169,070.99x = 7,331,548,138,318,892 - Step 5: Solve for x
x = 7,331,548,138,318,892/98,169,070.99 - Step 6: Final answer
x = 74,682,871.75
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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.