Finding the Fourth Proportional to 21,326,591.48, 29,432,275.28 and 12,159,465.08
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Solution
The fourth proportional to 21,326,591.48, 29,432,275.28 and 12,159,465.08 is: 16,780,962.11
Step by Step Solution
- Step 1: Write the proportion equation
21,326,591.48 : 29,432,275.28 = 12,159,465.08 : x - Step 2: Convert to fraction form
21,326,591.48/29,432,275.28 = 12,159,465.08/x - Step 3: Cross multiply
21,326,591.48x = 29,432,275.28 × 12,159,465.08 - Step 4: Simplify right side
21,326,591.48x = 357,880,723,492,107.25 - Step 5: Solve for x
x = 357,880,723,492,107.25/21,326,591.48 - Step 6: Final answer
x = 16,780,962.11
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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.