Finding the Fourth Proportional to 20,572,935.36, 30,853,103.40 and 14,223,986.88
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Solution
The fourth proportional to 20,572,935.36, 30,853,103.40 and 14,223,986.88 is: 21,331,624.79
Step by Step Solution
- Step 1: Write the proportion equation
20,572,935.36 : 30,853,103.40 = 14,223,986.88 : x - Step 2: Convert to fraction form
20,572,935.36/30,853,103.40 = 14,223,986.88/x - Step 3: Cross multiply
20,572,935.36x = 30,853,103.40 × 14,223,986.88 - Step 4: Simplify right side
20,572,935.36x = 438,854,137,968,883.38 - Step 5: Solve for x
x = 438,854,137,968,883.38/20,572,935.36 - Step 6: Final answer
x = 21,331,624.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.