Finding the Fourth Proportional to 15,604,440.34, 21,538,455.24 and 9,079,330.09
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Solution
The fourth proportional to 15,604,440.34, 21,538,455.24 and 9,079,330.09 is: 12,531,993.49
Step by Step Solution
- Step 1: Write the proportion equation
15,604,440.34 : 21,538,455.24 = 9,079,330.09 : x - Step 2: Convert to fraction form
15,604,440.34/21,538,455.24 = 9,079,330.09/x - Step 3: Cross multiply
15,604,440.34x = 21,538,455.24 × 9,079,330.09 - Step 4: Simplify right side
15,604,440.34x = 195,554,744,752,650.16 - Step 5: Solve for x
x = 195,554,744,752,650.16/15,604,440.34 - Step 6: Final answer
x = 12,531,993.49
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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.