Finding the Fourth Proportional to 6,931,305.76, 9,561,360.40 and 4,030,377.12
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Solution
The fourth proportional to 6,931,305.76, 9,561,360.40 and 4,030,377.12 is: 5,559,686.66
Step by Step Solution
- Step 1: Write the proportion equation
6,931,305.76 : 9,561,360.40 = 4,030,377.12 : x - Step 2: Convert to fraction form
6,931,305.76/9,561,360.40 = 4,030,377.12/x - Step 3: Cross multiply
6,931,305.76x = 9,561,360.40 × 4,030,377.12 - Step 4: Simplify right side
6,931,305.76x = 38,535,888,192,234.05 - Step 5: Solve for x
x = 38,535,888,192,234.05/6,931,305.76 - Step 6: Final answer
x = 5,559,686.66
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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.