Finding the Fourth Proportional to 212,826,600.19, 293,700,578.35 and 115,041,456.19
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Solution
The fourth proportional to 212,826,600.19, 293,700,578.35 and 115,041,456.19 is: 158,757,139.32
Step by Step Solution
- Step 1: Write the proportion equation
212,826,600.19 : 293,700,578.35 = 115,041,456.19 : x - Step 2: Convert to fraction form
212,826,600.19/293,700,578.35 = 115,041,456.19/x - Step 3: Cross multiply
212,826,600.19x = 293,700,578.35 × 115,041,456.19 - Step 4: Simplify right side
212,826,600.19x = 33,787,742,215,760,688 - Step 5: Solve for x
x = 33,787,742,215,760,688/212,826,600.19 - Step 6: Final answer
x = 158,757,139.32
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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.