Finding the Fourth Proportional to 145,967,817.76, 201,436,122.18 and 78,986,776.26
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Solution
The fourth proportional to 145,967,817.76, 201,436,122.18 and 78,986,776.26 is: 109,002,040.02
Step by Step Solution
- Step 1: Write the proportion equation
145,967,817.76 : 201,436,122.18 = 78,986,776.26 : x - Step 2: Convert to fraction form
145,967,817.76/201,436,122.18 = 78,986,776.26/x - Step 3: Cross multiply
145,967,817.76x = 201,436,122.18 × 78,986,776.26 - Step 4: Simplify right side
145,967,817.76x = 15,910,789,913,313,686 - Step 5: Solve for x
x = 15,910,789,913,313,686/145,967,817.76 - Step 6: Final answer
x = 109,002,040.02
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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.