Finding the Fourth Proportional to 14,979,975.25, 20,686,642.58 and 14,163,868.52
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Solution
The fourth proportional to 14,979,975.25, 20,686,642.58 and 14,163,868.52 is: 19,559,637.50
Step by Step Solution
- Step 1: Write the proportion equation
14,979,975.25 : 20,686,642.58 = 14,163,868.52 : x - Step 2: Convert to fraction form
14,979,975.25/20,686,642.58 = 14,163,868.52/x - Step 3: Cross multiply
14,979,975.25x = 20,686,642.58 × 14,163,868.52 - Step 4: Simplify right side
14,979,975.25x = 293,002,885,543,662 - Step 5: Solve for x
x = 293,002,885,543,662/14,979,975.25 - Step 6: Final answer
x = 19,559,637.50
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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.