Finding the Fourth Proportional to 7,765,023.77, 10,715,645.57 and 4,232,742.96
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Solution
The fourth proportional to 7,765,023.77, 10,715,645.57 and 4,232,742.96 is: 5,841,137.74
Step by Step Solution
- Step 1: Write the proportion equation
7,765,023.77 : 10,715,645.57 = 4,232,742.96 : x - Step 2: Convert to fraction form
7,765,023.77/10,715,645.57 = 4,232,742.96/x - Step 3: Cross multiply
7,765,023.77x = 10,715,645.57 × 4,232,742.96 - Step 4: Simplify right side
7,765,023.77x = 45,356,573,360,964.07 - Step 5: Solve for x
x = 45,356,573,360,964.07/7,765,023.77 - Step 6: Final answer
x = 5,841,137.74
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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.