Finding the Fourth Proportional to 7,239,725.73, 9,997,306.34 and 5,400,990.50
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Solution
The fourth proportional to 7,239,725.73, 9,997,306.34 and 5,400,990.50 is: 7,458,204.70
Step by Step Solution
- Step 1: Write the proportion equation
7,239,725.73 : 9,997,306.34 = 5,400,990.50 : x - Step 2: Convert to fraction form
7,239,725.73/9,997,306.34 = 5,400,990.50/x - Step 3: Cross multiply
7,239,725.73x = 9,997,306.34 × 5,400,990.50 - Step 4: Simplify right side
7,239,725.73x = 53,995,356,490,938.29 - Step 5: Solve for x
x = 53,995,356,490,938.29/7,239,725.73 - Step 6: Final answer
x = 7,458,204.70
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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.