Finding the Fourth Proportional to 20,124,385.40, 27,772,335.66 and 11,305,394.70
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Solution
The fourth proportional to 20,124,385.40, 27,772,335.66 and 11,305,394.70 is: 15,601,828.84
Step by Step Solution
- Step 1: Write the proportion equation
20,124,385.40 : 27,772,335.66 = 11,305,394.70 : x - Step 2: Convert to fraction form
20,124,385.40/27,772,335.66 = 11,305,394.70/x - Step 3: Cross multiply
20,124,385.40x = 27,772,335.66 × 11,305,394.70 - Step 4: Simplify right side
20,124,385.40x = 313,977,216,377,185 - Step 5: Solve for x
x = 313,977,216,377,185/20,124,385.40 - Step 6: Final answer
x = 15,601,828.84
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1.5x scale
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.