Finding the Fourth Proportional to 62,670,982.74, 86,486,269.20 and 39,163,169.72
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Solution
The fourth proportional to 62,670,982.74, 86,486,269.20 and 39,163,169.72 is: 54,045,369.81
Step by Step Solution
- Step 1: Write the proportion equation
62,670,982.74 : 86,486,269.20 = 39,163,169.72 : x - Step 2: Convert to fraction form
62,670,982.74/86,486,269.20 = 39,163,169.72/x - Step 3: Cross multiply
62,670,982.74x = 86,486,269.20 × 39,163,169.72 - Step 4: Simplify right side
62,670,982.74x = 3,387,076,438,696,777.50 - Step 5: Solve for x
x = 3,387,076,438,696,777.50/62,670,982.74 - Step 6: Final answer
x = 54,045,369.81
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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.