Finding the Fourth Proportional to 15,221,026.24, 21,005,672.16 and 9,108,278.08
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Solution
The fourth proportional to 15,221,026.24, 21,005,672.16 and 9,108,278.08 is: 12,569,816.27
Step by Step Solution
- Step 1: Write the proportion equation
15,221,026.24 : 21,005,672.16 = 9,108,278.08 : x - Step 2: Convert to fraction form
15,221,026.24/21,005,672.16 = 9,108,278.08/x - Step 3: Cross multiply
15,221,026.24x = 21,005,672.16 × 9,108,278.08 - Step 4: Simplify right side
15,221,026.24x = 191,325,503,290,594.25 - Step 5: Solve for x
x = 191,325,503,290,594.25/15,221,026.24 - Step 6: Final answer
x = 12,569,816.27
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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.