Finding the Fourth Proportional to 15,153,148.80, 20,911,795.20 and 8,277,744.96
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Solution
The fourth proportional to 15,153,148.80, 20,911,795.20 and 8,277,744.96 is: 11,423,533.79
Step by Step Solution
- Step 1: Write the proportion equation
15,153,148.80 : 20,911,795.20 = 8,277,744.96 : x - Step 2: Convert to fraction form
15,153,148.80/20,911,795.20 = 8,277,744.96/x - Step 3: Cross multiply
15,153,148.80x = 20,911,795.20 × 8,277,744.96 - Step 4: Simplify right side
15,153,148.80x = 173,102,507,321,352.19 - Step 5: Solve for x
x = 173,102,507,321,352.19/15,153,148.80 - Step 6: Final answer
x = 11,423,533.79
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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.