Finding the Fourth Proportional to 7,873,811.75, 10,865,860.16 and 4,252,139.75
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Solution
The fourth proportional to 7,873,811.75, 10,865,860.16 and 4,252,139.75 is: 5,867,952.82
Step by Step Solution
- Step 1: Write the proportion equation
7,873,811.75 : 10,865,860.16 = 4,252,139.75 : x - Step 2: Convert to fraction form
7,873,811.75/10,865,860.16 = 4,252,139.75/x - Step 3: Cross multiply
7,873,811.75x = 10,865,860.16 × 4,252,139.75 - Step 4: Simplify right side
7,873,811.75x = 46,203,155,910,181.31 - Step 5: Solve for x
x = 46,203,155,910,181.31/7,873,811.75 - Step 6: Final answer
x = 5,867,952.82
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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.