Finding the Fourth Proportional to 7,509,187.20, 11,245,409.70 and 6,781,353.91
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Solution
The fourth proportional to 7,509,187.20, 11,245,409.70 and 6,781,353.91 is: 10,155,440.40
Step by Step Solution
- Step 1: Write the proportion equation
7,509,187.20 : 11,245,409.70 = 6,781,353.91 : x - Step 2: Convert to fraction form
7,509,187.20/11,245,409.70 = 6,781,353.91/x - Step 3: Cross multiply
7,509,187.20x = 11,245,409.70 × 6,781,353.91 - Step 4: Simplify right side
7,509,187.20x = 76,259,103,038,646.92 - Step 5: Solve for x
x = 76,259,103,038,646.92/7,509,187.20 - Step 6: Final answer
x = 10,155,440.40
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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.