Finding the Fourth Proportional to 99,382,322.42, 137,146,305.84 and 57,572,087.48
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Solution
The fourth proportional to 99,382,322.42, 137,146,305.84 and 57,572,087.48 is: 79,448,728.16
Step by Step Solution
- Step 1: Write the proportion equation
99,382,322.42 : 137,146,305.84 = 57,572,087.48 : x - Step 2: Convert to fraction form
99,382,322.42/137,146,305.84 = 57,572,087.48/x - Step 3: Cross multiply
99,382,322.42x = 137,146,305.84 × 57,572,087.48 - Step 4: Simplify right side
99,382,322.42x = 7,895,799,117,379,315 - Step 5: Solve for x
x = 7,895,799,117,379,315/99,382,322.42 - Step 6: Final answer
x = 79,448,728.16
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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.