Finding the Fourth Proportional to 7,881,129.11, 10,875,711.40 and 4,620,115.74
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Solution
The fourth proportional to 7,881,129.11, 10,875,711.40 and 4,620,115.74 is: 6,375,615.06
Step by Step Solution
- Step 1: Write the proportion equation
7,881,129.11 : 10,875,711.40 = 4,620,115.74 : x - Step 2: Convert to fraction form
7,881,129.11/10,875,711.40 = 4,620,115.74/x - Step 3: Cross multiply
7,881,129.11x = 10,875,711.40 × 4,620,115.74 - Step 4: Simplify right side
7,881,129.11x = 50,247,045,422,837.44 - Step 5: Solve for x
x = 50,247,045,422,837.44/7,881,129.11 - Step 6: Final answer
x = 6,375,615.06
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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.