Finding the Fourth Proportional to 62,670,983.74, 86,486,270.58 and 39,163,170.72
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Solution
The fourth proportional to 62,670,983.74, 86,486,270.58 and 39,163,170.72 is: 54,045,371.20
Step by Step Solution
- Step 1: Write the proportion equation
62,670,983.74 : 86,486,270.58 = 39,163,170.72 : x - Step 2: Convert to fraction form
62,670,983.74/86,486,270.58 = 39,163,170.72/x - Step 3: Cross multiply
62,670,983.74x = 86,486,270.58 × 39,163,170.72 - Step 4: Simplify right side
62,670,983.74x = 3,387,076,579,660,653 - Step 5: Solve for x
x = 3,387,076,579,660,653/62,670,983.74 - Step 6: Final answer
x = 54,045,371.20
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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.