Finding the Fourth Proportional to 15,936,465.95, 21,989,579.34 and 8,966,176.19
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Solution
The fourth proportional to 15,936,465.95, 21,989,579.34 and 8,966,176.19 is: 12,371,779.49
Step by Step Solution
- Step 1: Write the proportion equation
15,936,465.95 : 21,989,579.34 = 8,966,176.19 : x - Step 2: Convert to fraction form
15,936,465.95/21,989,579.34 = 8,966,176.19/x - Step 3: Cross multiply
15,936,465.95x = 21,989,579.34 × 8,966,176.19 - Step 4: Simplify right side
15,936,465.95x = 197,162,442,551,645.16 - Step 5: Solve for x
x = 197,162,442,551,645.16/15,936,465.95 - Step 6: Final answer
x = 12,371,779.49
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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.