Finding the Fourth Proportional to 9,195,928, 12,689,471.84 and 5,121,926.08
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Solution
The fourth proportional to 9,195,928, 12,689,471.84 and 5,121,926.08 is: 7,067,751.81
Step by Step Solution
- Step 1: Write the proportion equation
9,195,928 : 12,689,471.84 = 5,121,926.08 : x - Step 2: Convert to fraction form
9,195,928/12,689,471.84 = 5,121,926.08/x - Step 3: Cross multiply
9,195,928x = 12,689,471.84 × 5,121,926.08 - Step 4: Simplify right side
9,195,928x = 64,994,536,758,721.59 - Step 5: Solve for x
x = 64,994,536,758,721.59/9,195,928 - Step 6: Final answer
x = 7,067,751.81
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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.