Finding the Fourth Proportional to 90,346,416.36, 124,678,740.42 and 49,093,531.08
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Solution
The fourth proportional to 90,346,416.36, 124,678,740.42 and 49,093,531.08 is: 67,749,445.57
Step by Step Solution
- Step 1: Write the proportion equation
90,346,416.36 : 124,678,740.42 = 49,093,531.08 : x - Step 2: Convert to fraction form
90,346,416.36/124,678,740.42 = 49,093,531.08/x - Step 3: Cross multiply
90,346,416.36x = 124,678,740.42 × 49,093,531.08 - Step 4: Simplify right side
90,346,416.36x = 6,120,919,617,824,522 - Step 5: Solve for x
x = 6,120,919,617,824,522/90,346,416.36 - Step 6: Final answer
x = 67,749,445.57
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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.