Finding the Fourth Proportional to 53,431,522.74, 73,735,643.34 and 28,985,236.74
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Solution
The fourth proportional to 53,431,522.74, 73,735,643.34 and 28,985,236.74 is: 39,999,703.71
Step by Step Solution
- Step 1: Write the proportion equation
53,431,522.74 : 73,735,643.34 = 28,985,236.74 : x - Step 2: Convert to fraction form
53,431,522.74/73,735,643.34 = 28,985,236.74/x - Step 3: Cross multiply
53,431,522.74x = 73,735,643.34 × 28,985,236.74 - Step 4: Simplify right side
53,431,522.74x = 2,137,245,078,386,104.25 - Step 5: Solve for x
x = 2,137,245,078,386,104.25/53,431,522.74 - Step 6: Final answer
x = 39,999,703.71
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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.