Finding the Fourth Proportional to 7,828,368.72, 11,731,220.64 and 5,397,026.64
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Solution
The fourth proportional to 7,828,368.72, 11,731,220.64 and 5,397,026.64 is: 8,087,727.16
Step by Step Solution
- Step 1: Write the proportion equation
7,828,368.72 : 11,731,220.64 = 5,397,026.64 : x - Step 2: Convert to fraction form
7,828,368.72/11,731,220.64 = 5,397,026.64/x - Step 3: Cross multiply
7,828,368.72x = 11,731,220.64 × 5,397,026.64 - Step 4: Simplify right side
7,828,368.72x = 63,313,710,313,797.85 - Step 5: Solve for x
x = 63,313,710,313,797.85/7,828,368.72 - Step 6: Final answer
x = 8,087,727.16
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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.