Finding the Fourth Proportional to 15,472,719.98, 21,351,102.78 and 8,946,772.70
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Solution
The fourth proportional to 15,472,719.98, 21,351,102.78 and 8,946,772.70 is: 12,345,823.08
Step by Step Solution
- Step 1: Write the proportion equation
15,472,719.98 : 21,351,102.78 = 8,946,772.70 : x - Step 2: Convert to fraction form
15,472,719.98/21,351,102.78 = 8,946,772.70/x - Step 3: Cross multiply
15,472,719.98x = 21,351,102.78 × 8,946,772.70 - Step 4: Simplify right side
15,472,719.98x = 191,023,463,466,998.09 - Step 5: Solve for x
x = 191,023,463,466,998.09/15,472,719.98 - Step 6: Final answer
x = 12,345,823.08
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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.