Finding the Fourth Proportional to 38,779,504.62, 53,515,703.33 and 21,376,140.48
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Solution
The fourth proportional to 38,779,504.62, 53,515,703.33 and 21,376,140.48 is: 29,499,066.66
Step by Step Solution
- Step 1: Write the proportion equation
38,779,504.62 : 53,515,703.33 = 21,376,140.48 : x - Step 2: Convert to fraction form
38,779,504.62/53,515,703.33 = 21,376,140.48/x - Step 3: Cross multiply
38,779,504.62x = 53,515,703.33 × 21,376,140.48 - Step 4: Simplify right side
38,779,504.62x = 1,143,959,191,893,624.75 - Step 5: Solve for x
x = 1,143,959,191,893,624.75/38,779,504.62 - Step 6: Final answer
x = 29,499,066.66
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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.