Finding the Fourth Proportional to 38,779,514.98, 53,518,125 and 21,375,820.96
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Solution
The fourth proportional to 38,779,514.98, 53,518,125 and 21,375,820.96 is: 29,499,952.71
Step by Step Solution
- Step 1: Write the proportion equation
38,779,514.98 : 53,518,125 = 21,375,820.96 : x - Step 2: Convert to fraction form
38,779,514.98/53,518,125 = 21,375,820.96/x - Step 3: Cross multiply
38,779,514.98x = 53,518,125 × 21,375,820.96 - Step 4: Simplify right side
38,779,514.98x = 1,143,993,858,114,900 - Step 5: Solve for x
x = 1,143,993,858,114,900/38,779,514.98 - Step 6: Final answer
x = 29,499,952.71
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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.