Finding the Fourth Proportional to 15,675,186.11, 21,631,806.95 and 8,705,862.41
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Solution
The fourth proportional to 15,675,186.11, 21,631,806.95 and 8,705,862.41 is: 12,014,117.96
Step by Step Solution
- Step 1: Write the proportion equation
15,675,186.11 : 21,631,806.95 = 8,705,862.41 : x - Step 2: Convert to fraction form
15,675,186.11/21,631,806.95 = 8,705,862.41/x - Step 3: Cross multiply
15,675,186.11x = 21,631,806.95 × 8,705,862.41 - Step 4: Simplify right side
15,675,186.11x = 188,323,534,834,693.41 - Step 5: Solve for x
x = 188,323,534,834,693.41/15,675,186.11 - Step 6: Final answer
x = 12,014,117.96
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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.