Finding the Fourth Proportional to 5,122,631.66, 7,069,503.81 and 2,947,505.30
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Solution
The fourth proportional to 5,122,631.66, 7,069,503.81 and 2,947,505.30 is: 4,067,713.89
Step by Step Solution
- Step 1: Write the proportion equation
5,122,631.66 : 7,069,503.81 = 2,947,505.30 : x - Step 2: Convert to fraction form
5,122,631.66/7,069,503.81 = 2,947,505.30/x - Step 3: Cross multiply
5,122,631.66x = 7,069,503.81 × 2,947,505.30 - Step 4: Simplify right side
5,122,631.66x = 20,837,399,948,345.19 - Step 5: Solve for x
x = 20,837,399,948,345.19/5,122,631.66 - Step 6: Final answer
x = 4,067,713.89
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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.