Finding the Fourth Proportional to 7,722,122.07, 11,578,641.15 and 2,930,148.09
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Solution
The fourth proportional to 7,722,122.07, 11,578,641.15 and 2,930,148.09 is: 4,393,498.70
Step by Step Solution
- Step 1: Write the proportion equation
7,722,122.07 : 11,578,641.15 = 2,930,148.09 : x - Step 2: Convert to fraction form
7,722,122.07/11,578,641.15 = 2,930,148.09/x - Step 3: Cross multiply
7,722,122.07x = 11,578,641.15 × 2,930,148.09 - Step 4: Simplify right side
7,722,122.07x = 33,927,133,250,467.90 - Step 5: Solve for x
x = 33,927,133,250,467.90/7,722,122.07 - Step 6: Final answer
x = 4,393,498.70
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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.