Finding the Fourth Proportional to 88,968,013.80, 133,452,020.70 and 53,136,205.80
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Solution
The fourth proportional to 88,968,013.80, 133,452,020.70 and 53,136,205.80 is: 79,704,308.70
Step by Step Solution
- Step 1: Write the proportion equation
88,968,013.80 : 133,452,020.70 = 53,136,205.80 : x - Step 2: Convert to fraction form
88,968,013.80/133,452,020.70 = 53,136,205.80/x - Step 3: Cross multiply
88,968,013.80x = 133,452,020.70 × 53,136,205.80 - Step 4: Simplify right side
88,968,013.80x = 7,091,134,036,341,060 - Step 5: Solve for x
x = 7,091,134,036,341,060/88,968,013.80 - Step 6: Final answer
x = 79,704,308.70
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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.