Finding the Fourth Proportional to 21,326,220.36, 29,430,192.78 and 11,536,662.42
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Solution
The fourth proportional to 21,326,220.36, 29,430,192.78 and 11,536,662.42 is: 15,920,598.84
Step by Step Solution
- Step 1: Write the proportion equation
21,326,220.36 : 29,430,192.78 = 11,536,662.42 : x - Step 2: Convert to fraction form
21,326,220.36/29,430,192.78 = 11,536,662.42/x - Step 3: Cross multiply
21,326,220.36x = 29,430,192.78 × 11,536,662.42 - Step 4: Simplify right side
21,326,220.36x = 339,526,199,058,381.31 - Step 5: Solve for x
x = 339,526,199,058,381.31/21,326,220.36 - Step 6: Final answer
x = 15,920,598.84
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1.5x scale
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.