Finding the Fourth Proportional to 20,657,430.57, 28,514,927.97 and 17,745,133.89
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Solution
The fourth proportional to 20,657,430.57, 28,514,927.97 and 17,745,133.89 is: 24,494,876.69
Step by Step Solution
- Step 1: Write the proportion equation
20,657,430.57 : 28,514,927.97 = 17,745,133.89 : x - Step 2: Convert to fraction form
20,657,430.57/28,514,927.97 = 17,745,133.89/x - Step 3: Cross multiply
20,657,430.57x = 28,514,927.97 × 17,745,133.89 - Step 4: Simplify right side
20,657,430.57x = 506,001,214,602,630.25 - Step 5: Solve for x
x = 506,001,214,602,630.25/20,657,430.57 - Step 6: Final answer
x = 24,494,876.69
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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.