Finding the Fourth Proportional to 7,211,124.72, 9,951,355.08 and 3,948,150.96
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Solution
The fourth proportional to 7,211,124.72, 9,951,355.08 and 3,948,150.96 is: 5,448,449.95
Step by Step Solution
- Step 1: Write the proportion equation
7,211,124.72 : 9,951,355.08 = 3,948,150.96 : x - Step 2: Convert to fraction form
7,211,124.72/9,951,355.08 = 3,948,150.96/x - Step 3: Cross multiply
7,211,124.72x = 9,951,355.08 × 3,948,150.96 - Step 4: Simplify right side
7,211,124.72x = 39,289,452,112,402.88 - Step 5: Solve for x
x = 39,289,452,112,402.88/7,211,124.72 - Step 6: Final answer
x = 5,448,449.95
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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.