Finding the Fourth Proportional to 18,968,509.80, 26,176,541.52 and 10,266,680.88
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Solution
The fourth proportional to 18,968,509.80, 26,176,541.52 and 10,266,680.88 is: 14,168,018.53
Step by Step Solution
- Step 1: Write the proportion equation
18,968,509.80 : 26,176,541.52 = 10,266,680.88 : x - Step 2: Convert to fraction form
18,968,509.80/26,176,541.52 = 10,266,680.88/x - Step 3: Cross multiply
18,968,509.80x = 26,176,541.52 × 10,266,680.88 - Step 4: Simplify right side
18,968,509.80x = 268,746,198,327,910.16 - Step 5: Solve for x
x = 268,746,198,327,910.16/18,968,509.80 - Step 6: Final answer
x = 14,168,018.53
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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.