Finding the Fourth Proportional to 7,974,562.68, 11,961,265.64 and 3,115,955.88
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Solution
The fourth proportional to 7,974,562.68, 11,961,265.64 and 3,115,955.88 is: 4,673,707.82
Step by Step Solution
- Step 1: Write the proportion equation
7,974,562.68 : 11,961,265.64 = 3,115,955.88 : x - Step 2: Convert to fraction form
7,974,562.68/11,961,265.64 = 3,115,955.88/x - Step 3: Cross multiply
7,974,562.68x = 11,961,265.64 × 3,115,955.88 - Step 4: Simplify right side
7,974,562.68x = 37,270,775,987,620.18 - Step 5: Solve for x
x = 37,270,775,987,620.18/7,974,562.68 - Step 6: Final answer
x = 4,673,707.82
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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.