Finding the Fourth Proportional to 65,143,213.60, 97,811,242.80 and 36,446,663.20
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Solution
The fourth proportional to 65,143,213.60, 97,811,242.80 and 36,446,663.20 is: 54,723,941.70
Step by Step Solution
- Step 1: Write the proportion equation
65,143,213.60 : 97,811,242.80 = 36,446,663.20 : x - Step 2: Convert to fraction form
65,143,213.60/97,811,242.80 = 36,446,663.20/x - Step 3: Cross multiply
65,143,213.60x = 97,811,242.80 × 36,446,663.20 - Step 4: Simplify right side
65,143,213.60x = 3,564,893,423,505,025 - Step 5: Solve for x
x = 3,564,893,423,505,025/65,143,213.60 - Step 6: Final answer
x = 54,723,941.70
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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.