Finding the Fourth Proportional to 145,791,527.40, 201,192,668.42 and 79,716,294.12
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Solution
The fourth proportional to 145,791,527.40, 201,192,668.42 and 79,716,294.12 is: 110,008,683.06
Step by Step Solution
- Step 1: Write the proportion equation
145,791,527.40 : 201,192,668.42 = 79,716,294.12 : x - Step 2: Convert to fraction form
145,791,527.40/201,192,668.42 = 79,716,294.12/x - Step 3: Cross multiply
145,791,527.40x = 201,192,668.42 × 79,716,294.12 - Step 4: Simplify right side
145,791,527.40x = 16,038,333,930,556,356 - Step 5: Solve for x
x = 16,038,333,930,556,356/145,791,527.40 - Step 6: Final answer
x = 110,008,683.06
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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.