Finding the Fourth Proportional to 18,475,693.38, 25,495,929.36 and 10,215,613.08
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Solution
The fourth proportional to 18,475,693.38, 25,495,929.36 and 10,215,613.08 is: 14,097,254.38
Step by Step Solution
- Step 1: Write the proportion equation
18,475,693.38 : 25,495,929.36 = 10,215,613.08 : x - Step 2: Convert to fraction form
18,475,693.38/25,495,929.36 = 10,215,613.08/x - Step 3: Cross multiply
18,475,693.38x = 25,495,929.36 × 10,215,613.08 - Step 4: Simplify right side
18,475,693.38x = 260,456,549,456,772.03 - Step 5: Solve for x
x = 260,456,549,456,772.03/18,475,693.38 - Step 6: Final answer
x = 14,097,254.38
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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.