Finding the Fourth Proportional to 15,609,906.36, 21,539,100.60 and 9,804,553.20
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Solution
The fourth proportional to 15,609,906.36, 21,539,100.60 and 9,804,553.20 is: 13,528,669.09
Step by Step Solution
- Step 1: Write the proportion equation
15,609,906.36 : 21,539,100.60 = 9,804,553.20 : x - Step 2: Convert to fraction form
15,609,906.36/21,539,100.60 = 9,804,553.20/x - Step 3: Cross multiply
15,609,906.36x = 21,539,100.60 × 9,804,553.20 - Step 4: Simplify right side
15,609,906.36x = 211,181,257,712,851.91 - Step 5: Solve for x
x = 211,181,257,712,851.91/15,609,906.36 - Step 6: Final answer
x = 13,528,669.09
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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.