Finding the Fourth Proportional to 56,379,543.20, 84,569,314.80 and 39,373,431.20
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Solution
The fourth proportional to 56,379,543.20, 84,569,314.80 and 39,373,431.20 is: 59,060,146.80
Step by Step Solution
- Step 1: Write the proportion equation
56,379,543.20 : 84,569,314.80 = 39,373,431.20 : x - Step 2: Convert to fraction form
56,379,543.20/84,569,314.80 = 39,373,431.20/x - Step 3: Cross multiply
56,379,543.20x = 84,569,314.80 × 39,373,431.20 - Step 4: Simplify right side
56,379,543.20x = 3,329,784,097,908,942 - Step 5: Solve for x
x = 3,329,784,097,908,942/56,379,543.20 - Step 6: Final answer
x = 59,060,146.80
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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.