Finding the Fourth Proportional to 437,457,826.60, 656,186,739.90 and 430,655,381.80
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Solution
The fourth proportional to 437,457,826.60, 656,186,739.90 and 430,655,381.80 is: 645,983,072.70
Step by Step Solution
- Step 1: Write the proportion equation
437,457,826.60 : 656,186,739.90 = 430,655,381.80 : x - Step 2: Convert to fraction form
437,457,826.60/656,186,739.90 = 430,655,381.80/x - Step 3: Cross multiply
437,457,826.60x = 656,186,739.90 × 430,655,381.80 - Step 4: Simplify right side
437,457,826.60x = 282,590,351,003,731,776 - Step 5: Solve for x
x = 282,590,351,003,731,776/437,457,826.60 - Step 6: Final answer
x = 645,983,072.70
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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.