Finding the Fourth Proportional to 43,455,552.20, 65,183,328.30 and 13,163,415.20
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Solution
The fourth proportional to 43,455,552.20, 65,183,328.30 and 13,163,415.20 is: 19,745,122.80
Step by Step Solution
- Step 1: Write the proportion equation
43,455,552.20 : 65,183,328.30 = 13,163,415.20 : x - Step 2: Convert to fraction form
43,455,552.20/65,183,328.30 = 13,163,415.20/x - Step 3: Cross multiply
43,455,552.20x = 65,183,328.30 × 13,163,415.20 - Step 4: Simplify right side
43,455,552.20x = 858,035,214,530,810.12 - Step 5: Solve for x
x = 858,035,214,530,810.12/43,455,552.20 - Step 6: Final answer
x = 19,745,122.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.