Finding the Fourth Proportional to 38,779,518, 53,518,129.14 and 21,375,823.96
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Solution
The fourth proportional to 38,779,518, 53,518,129.14 and 21,375,823.96 is: 29,499,956.84
Step by Step Solution
- Step 1: Write the proportion equation
38,779,518 : 53,518,129.14 = 21,375,823.96 : x - Step 2: Convert to fraction form
38,779,518/53,518,129.14 = 21,375,823.96/x - Step 3: Cross multiply
38,779,518x = 53,518,129.14 × 21,375,823.96 - Step 4: Simplify right side
38,779,518x = 1,143,994,107,165,186.25 - Step 5: Solve for x
x = 1,143,994,107,165,186.25/38,779,518 - Step 6: Final answer
x = 29,499,956.84
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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.