Finding the Fourth Proportional to 18,697,651.57, 25,615,663.14 and 17,998,446.53
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Solution
The fourth proportional to 18,697,651.57, 25,615,663.14 and 17,998,446.53 is: 24,657,756.70
Step by Step Solution
- Step 1: Write the proportion equation
18,697,651.57 : 25,615,663.14 = 17,998,446.53 : x - Step 2: Convert to fraction form
18,697,651.57/25,615,663.14 = 17,998,446.53/x - Step 3: Cross multiply
18,697,651.57x = 25,615,663.14 × 17,998,446.53 - Step 4: Simplify right side
18,697,651.57x = 461,042,143,241,985.88 - Step 5: Solve for x
x = 461,042,143,241,985.88/18,697,651.57 - Step 6: Final answer
x = 24,657,756.70
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.