Finding the Fourth Proportional to 5,676,284.40, 7,839,788.76 and 4,134,415.38
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Solution
The fourth proportional to 5,676,284.40, 7,839,788.76 and 4,134,415.38 is: 5,710,239.47
Step by Step Solution
- Step 1: Write the proportion equation
5,676,284.40 : 7,839,788.76 = 4,134,415.38 : x - Step 2: Convert to fraction form
5,676,284.40/7,839,788.76 = 4,134,415.38/x - Step 3: Cross multiply
5,676,284.40x = 7,839,788.76 × 4,134,415.38 - Step 4: Simplify right side
5,676,284.40x = 32,412,943,225,295.13 - Step 5: Solve for x
x = 32,412,943,225,295.13/5,676,284.40 - Step 6: Final answer
x = 5,710,239.47
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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.