Finding the Fourth Proportional to 38,326,217.16, 57,498,387.42 and 12,418,475.70
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Solution
The fourth proportional to 38,326,217.16, 57,498,387.42 and 12,418,475.70 is: 18,630,649.72
Step by Step Solution
- Step 1: Write the proportion equation
38,326,217.16 : 57,498,387.42 = 12,418,475.70 : x - Step 2: Convert to fraction form
38,326,217.16/57,498,387.42 = 12,418,475.70/x - Step 3: Cross multiply
38,326,217.16x = 57,498,387.42 × 12,418,475.70 - Step 4: Simplify right side
38,326,217.16x = 714,042,326,964,455.62 - Step 5: Solve for x
x = 714,042,326,964,455.62/38,326,217.16 - Step 6: Final answer
x = 18,630,649.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.