Finding the Fourth Proportional to 7,125,647.63, 9,841,565.87 and 4,689,135.98
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Solution
The fourth proportional to 7,125,647.63, 9,841,565.87 and 4,689,135.98 is: 6,476,385.45
Step by Step Solution
- Step 1: Write the proportion equation
7,125,647.63 : 9,841,565.87 = 4,689,135.98 : x - Step 2: Convert to fraction form
7,125,647.63/9,841,565.87 = 4,689,135.98/x - Step 3: Cross multiply
7,125,647.63x = 9,841,565.87 × 4,689,135.98 - Step 4: Simplify right side
7,125,647.63x = 46,148,440,602,393.62 - Step 5: Solve for x
x = 46,148,440,602,393.62/7,125,647.63 - Step 6: Final answer
x = 6,476,385.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.