Finding the Fourth Proportional to 38,670,508.44, 53,364,235.98 and 21,266,853.30
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Solution
The fourth proportional to 38,670,508.44, 53,364,235.98 and 21,266,853.30 is: 29,347,671.49
Step by Step Solution
- Step 1: Write the proportion equation
38,670,508.44 : 53,364,235.98 = 21,266,853.30 : x - Step 2: Convert to fraction form
38,670,508.44/53,364,235.98 = 21,266,853.30/x - Step 3: Cross multiply
38,670,508.44x = 53,364,235.98 × 21,266,853.30 - Step 4: Simplify right side
38,670,508.44x = 1,134,889,378,053,241.75 - Step 5: Solve for x
x = 1,134,889,378,053,241.75/38,670,508.44 - Step 6: Final answer
x = 29,347,671.49
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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.