Finding the Fourth Proportional to 98,173,310.19, 135,479,578.68 and 54,119,342.04
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Solution
The fourth proportional to 98,173,310.19, 135,479,578.68 and 54,119,342.04 is: 74,684,918.37
Step by Step Solution
- Step 1: Write the proportion equation
98,173,310.19 : 135,479,578.68 = 54,119,342.04 : x - Step 2: Convert to fraction form
98,173,310.19/135,479,578.68 = 54,119,342.04/x - Step 3: Cross multiply
98,173,310.19x = 135,479,578.68 × 54,119,342.04 - Step 4: Simplify right side
98,173,310.19x = 7,332,065,658,018,012 - Step 5: Solve for x
x = 7,332,065,658,018,012/98,173,310.19 - Step 6: Final answer
x = 74,684,918.37
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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.