Finding the Fourth Proportional to 12,807,378.48, 19,211,347.99 and 5,134,636.85
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Solution
The fourth proportional to 12,807,378.48, 19,211,347.99 and 5,134,636.85 is: 7,702,067.64
Step by Step Solution
- Step 1: Write the proportion equation
12,807,378.48 : 19,211,347.99 = 5,134,636.85 : x - Step 2: Convert to fraction form
12,807,378.48/19,211,347.99 = 5,134,636.85/x - Step 3: Cross multiply
12,807,378.48x = 19,211,347.99 × 5,134,636.85 - Step 4: Simplify right side
12,807,378.48x = 98,643,295,371,202.41 - Step 5: Solve for x
x = 98,643,295,371,202.41/12,807,378.48 - Step 6: Final answer
x = 7,702,067.64
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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.