Finding the Fourth Proportional to 15,403,672.59, 21,257,852.00 and 8,528,910.99
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Solution
The fourth proportional to 15,403,672.59, 21,257,852.00 and 8,528,910.99 is: 11,770,331.16
Step by Step Solution
- Step 1: Write the proportion equation
15,403,672.59 : 21,257,852.00 = 8,528,910.99 : x - Step 2: Convert to fraction form
15,403,672.59/21,257,852.00 = 8,528,910.99/x - Step 3: Cross multiply
15,403,672.59x = 21,257,852.00 × 8,528,910.99 - Step 4: Simplify right side
15,403,672.59x = 181,306,327,503,948.94 - Step 5: Solve for x
x = 181,306,327,503,948.94/15,403,672.59 - Step 6: Final answer
x = 11,770,331.16
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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.