Finding the Fourth Proportional to 29,748,847.94, 41,069,699.91 and 20,821,697.96
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Solution
The fourth proportional to 29,748,847.94, 41,069,699.91 and 20,821,697.96 is: 28,745,344.65
Step by Step Solution
- Step 1: Write the proportion equation
29,748,847.94 : 41,069,699.91 = 20,821,697.96 : x - Step 2: Convert to fraction form
29,748,847.94/41,069,699.91 = 20,821,697.96/x - Step 3: Cross multiply
29,748,847.94x = 41,069,699.91 × 20,821,697.96 - Step 4: Simplify right side
29,748,847.94x = 855,140,886,833,859.12 - Step 5: Solve for x
x = 855,140,886,833,859.12/29,748,847.94 - Step 6: Final answer
x = 28,745,344.65
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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.