Finding the Fourth Proportional to 7,148,730.96, 9,865,314.81 and 3,885,553.08
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Solution
The fourth proportional to 7,148,730.96, 9,865,314.81 and 3,885,553.08 is: 5,362,099.17
Step by Step Solution
- Step 1: Write the proportion equation
7,148,730.96 : 9,865,314.81 = 3,885,553.08 : x - Step 2: Convert to fraction form
7,148,730.96/9,865,314.81 = 3,885,553.08/x - Step 3: Cross multiply
7,148,730.96x = 9,865,314.81 × 3,885,553.08 - Step 4: Simplify right side
7,148,730.96x = 38,332,204,345,165.12 - Step 5: Solve for x
x = 38,332,204,345,165.12/7,148,730.96 - Step 6: Final answer
x = 5,362,099.17
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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.