Finding the Fourth Proportional to 7,920,970.63, 11,879,553.48 and 3,657,042.07
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Solution
The fourth proportional to 7,920,970.63, 11,879,553.48 and 3,657,042.07 is: 5,484,684.75
Step by Step Solution
- Step 1: Write the proportion equation
7,920,970.63 : 11,879,553.48 = 3,657,042.07 : x - Step 2: Convert to fraction form
7,920,970.63/11,879,553.48 = 3,657,042.07/x - Step 3: Cross multiply
7,920,970.63x = 11,879,553.48 × 3,657,042.07 - Step 4: Simplify right side
7,920,970.63x = 43,444,026,849,174.91 - Step 5: Solve for x
x = 43,444,026,849,174.91/7,920,970.63 - Step 6: Final answer
x = 5,484,684.75
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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.