Finding the Fourth Proportional to 15,021,322.84, 20,729,430.66 and 8,145,803.08
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Solution
The fourth proportional to 15,021,322.84, 20,729,430.66 and 8,145,803.08 is: 11,241,211.04
Step by Step Solution
- Step 1: Write the proportion equation
15,021,322.84 : 20,729,430.66 = 8,145,803.08 : x - Step 2: Convert to fraction form
15,021,322.84/20,729,430.66 = 8,145,803.08/x - Step 3: Cross multiply
15,021,322.84x = 20,729,430.66 × 8,145,803.08 - Step 4: Simplify right side
15,021,322.84x = 168,857,860,116,874.44 - Step 5: Solve for x
x = 168,857,860,116,874.44/15,021,322.84 - Step 6: Final answer
x = 11,241,211.04
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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.