Finding the Fourth Proportional to 5,122,974.46, 7,069,711.64 and 2,947,473.98
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Solution
The fourth proportional to 5,122,974.46, 7,069,711.64 and 2,947,473.98 is: 4,067,518.05
Step by Step Solution
- Step 1: Write the proportion equation
5,122,974.46 : 7,069,711.64 = 2,947,473.98 : x - Step 2: Convert to fraction form
5,122,974.46/7,069,711.64 = 2,947,473.98/x - Step 3: Cross multiply
5,122,974.46x = 7,069,711.64 × 2,947,473.98 - Step 4: Simplify right side
5,122,974.46x = 20,837,791,105,003.12 - Step 5: Solve for x
x = 20,837,791,105,003.12/5,122,974.46 - Step 6: Final answer
x = 4,067,518.05
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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.