Finding the Fourth Proportional to 13,078,199.80, 19,614,966.90 and 8,277,297.40
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Solution
The fourth proportional to 13,078,199.80, 19,614,966.90 and 8,277,297.40 is: 12,414,469.65
Step by Step Solution
- Step 1: Write the proportion equation
13,078,199.80 : 19,614,966.90 = 8,277,297.40 : x - Step 2: Convert to fraction form
13,078,199.80/19,614,966.90 = 8,277,297.40/x - Step 3: Cross multiply
13,078,199.80x = 19,614,966.90 × 8,277,297.40 - Step 4: Simplify right side
13,078,199.80x = 162,358,914,522,456.06 - Step 5: Solve for x
x = 162,358,914,522,456.06/13,078,199.80 - Step 6: Final answer
x = 12,414,469.65
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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.