Finding the Fourth Proportional to 7,875,551.68, 11,813,993.52 and 2,195,780.80
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Solution
The fourth proportional to 7,875,551.68, 11,813,993.52 and 2,195,780.80 is: 3,293,856.89
Step by Step Solution
- Step 1: Write the proportion equation
7,875,551.68 : 11,813,993.52 = 2,195,780.80 : x - Step 2: Convert to fraction form
7,875,551.68/11,813,993.52 = 2,195,780.80/x - Step 3: Cross multiply
7,875,551.68x = 11,813,993.52 × 2,195,780.80 - Step 4: Simplify right side
7,875,551.68x = 25,940,940,142,540.41 - Step 5: Solve for x
x = 25,940,940,142,540.41/7,875,551.68 - Step 6: Final answer
x = 3,293,856.89
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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.