Finding the Fourth Proportional to 7,898,895.36, 11,848,453.20 and 2,781,490.32
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Solution
The fourth proportional to 7,898,895.36, 11,848,453.20 and 2,781,490.32 is: 4,172,274.27
Step by Step Solution
- Step 1: Write the proportion equation
7,898,895.36 : 11,848,453.20 = 2,781,490.32 : x - Step 2: Convert to fraction form
7,898,895.36/11,848,453.20 = 2,781,490.32/x - Step 3: Cross multiply
7,898,895.36x = 11,848,453.20 × 2,781,490.32 - Step 4: Simplify right side
7,898,895.36x = 32,956,357,882,773.02 - Step 5: Solve for x
x = 32,956,357,882,773.02/7,898,895.36 - Step 6: Final answer
x = 4,172,274.27
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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.