Finding the Fourth Proportional to 43,455,553.20, 65,183,329.80 and 13,163,416.20
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Solution
The fourth proportional to 43,455,553.20, 65,183,329.80 and 13,163,416.20 is: 19,745,124.30
Step by Step Solution
- Step 1: Write the proportion equation
43,455,553.20 : 65,183,329.80 = 13,163,416.20 : x - Step 2: Convert to fraction form
43,455,553.20/65,183,329.80 = 13,163,416.20/x - Step 3: Cross multiply
43,455,553.20x = 65,183,329.80 × 13,163,416.20 - Step 4: Simplify right side
43,455,553.20x = 858,035,299,459,262.62 - Step 5: Solve for x
x = 858,035,299,459,262.62/43,455,553.20 - Step 6: Final answer
x = 19,745,124.30
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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.