Finding the Fourth Proportional to 38,437,836.18, 53,044,219.35 and 21,034,185.36
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Solution
The fourth proportional to 38,437,836.18, 53,044,219.35 and 21,034,185.36 is: 29,027,178.76
Step by Step Solution
- Step 1: Write the proportion equation
38,437,836.18 : 53,044,219.35 = 21,034,185.36 : x - Step 2: Convert to fraction form
38,437,836.18/53,044,219.35 = 21,034,185.36/x - Step 3: Cross multiply
38,437,836.18x = 53,044,219.35 × 21,034,185.36 - Step 4: Simplify right side
38,437,836.18x = 1,115,741,942,084,398.75 - Step 5: Solve for x
x = 1,115,741,942,084,398.75/38,437,836.18 - Step 6: Final answer
x = 29,027,178.76
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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.