Finding the Fourth Proportional to 48,208,532.84, 66,538,368.18 and 31,690,183.40
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Solution
The fourth proportional to 48,208,532.84, 66,538,368.18 and 31,690,183.40 is: 43,739,416.38
Step by Step Solution
- Step 1: Write the proportion equation
48,208,532.84 : 66,538,368.18 = 31,690,183.40 : x - Step 2: Convert to fraction form
48,208,532.84/66,538,368.18 = 31,690,183.40/x - Step 3: Cross multiply
48,208,532.84x = 66,538,368.18 × 31,690,183.40 - Step 4: Simplify right side
48,208,532.84x = 2,108,613,090,760,924 - Step 5: Solve for x
x = 2,108,613,090,760,924/48,208,532.84 - Step 6: Final answer
x = 43,739,416.38
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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.