Finding the Fourth Proportional to 7,776,758.40, 11,661,638.40 and 2,982,854.40
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Solution
The fourth proportional to 7,776,758.40, 11,661,638.40 and 2,982,854.40 is: 4,472,939.45
Step by Step Solution
- Step 1: Write the proportion equation
7,776,758.40 : 11,661,638.40 = 2,982,854.40 : x - Step 2: Convert to fraction form
7,776,758.40/11,661,638.40 = 2,982,854.40/x - Step 3: Cross multiply
7,776,758.40x = 11,661,638.40 × 2,982,854.40 - Step 4: Simplify right side
7,776,758.40x = 34,784,969,412,648.96 - Step 5: Solve for x
x = 34,784,969,412,648.96/7,776,758.40 - Step 6: Final answer
x = 4,472,939.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.