Finding the Fourth Proportional to 5,561,421.40, 8,335,133.70 and 4,931,565.40
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Solution
The fourth proportional to 5,561,421.40, 8,335,133.70 and 4,931,565.40 is: 7,391,142.30
Step by Step Solution
- Step 1: Write the proportion equation
5,561,421.40 : 8,335,133.70 = 4,931,565.40 : x - Step 2: Convert to fraction form
5,561,421.40/8,335,133.70 = 4,931,565.40/x - Step 3: Cross multiply
5,561,421.40x = 8,335,133.70 × 4,931,565.40 - Step 4: Simplify right side
5,561,421.40x = 41,105,256,959,293.98 - Step 5: Solve for x
x = 41,105,256,959,293.98/5,561,421.40 - Step 6: Final answer
x = 7,391,142.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.