Finding the Fourth Proportional to 19,787,890.92, 29,680,384.86 and 6,321,103.08
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Solution
The fourth proportional to 19,787,890.92, 29,680,384.86 and 6,321,103.08 is: 9,481,190.94
Step by Step Solution
- Step 1: Write the proportion equation
19,787,890.92 : 29,680,384.86 = 6,321,103.08 : x - Step 2: Convert to fraction form
19,787,890.92/29,680,384.86 = 6,321,103.08/x - Step 3: Cross multiply
19,787,890.92x = 29,680,384.86 × 6,321,103.08 - Step 4: Simplify right side
19,787,890.92x = 187,612,772,154,131.38 - Step 5: Solve for x
x = 187,612,772,154,131.38/19,787,890.92 - Step 6: Final answer
x = 9,481,190.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.