Finding the Fourth Proportional to 137,415,106.80, 206,122,660.20 and 115,891,746.30
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Solution
The fourth proportional to 137,415,106.80, 206,122,660.20 and 115,891,746.30 is: 173,837,619.45
Step by Step Solution
- Step 1: Write the proportion equation
137,415,106.80 : 206,122,660.20 = 115,891,746.30 : x - Step 2: Convert to fraction form
137,415,106.80/206,122,660.20 = 115,891,746.30/x - Step 3: Cross multiply
137,415,106.80x = 206,122,660.20 × 115,891,746.30 - Step 4: Simplify right side
137,415,106.80x = 23,887,915,042,579,504 - Step 5: Solve for x
x = 23,887,915,042,579,504/137,415,106.80 - Step 6: Final answer
x = 173,837,619.45
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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.