Finding the Fourth Proportional to 75,267,154.68, 103,675,142.56 and 53,202,720.80
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Solution
The fourth proportional to 75,267,154.68, 103,675,142.56 and 53,202,720.80 is: 73,282,957.05
Step by Step Solution
- Step 1: Write the proportion equation
75,267,154.68 : 103,675,142.56 = 53,202,720.80 : x - Step 2: Convert to fraction form
75,267,154.68/103,675,142.56 = 53,202,720.80/x - Step 3: Cross multiply
75,267,154.68x = 103,675,142.56 × 53,202,720.80 - Step 4: Simplify right side
75,267,154.68x = 5,515,799,663,519,877 - Step 5: Solve for x
x = 5,515,799,663,519,877/75,267,154.68 - Step 6: Final answer
x = 73,282,957.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.