Finding the Fourth Proportional to 7,281,973,135.87, 10,049,149,410.95 and 3,940,471,418.24
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Solution
The fourth proportional to 7,281,973,135.87, 10,049,149,410.95 and 3,940,471,418.24 is: 5,437,864,888.08
Step by Step Solution
- Step 1: Write the proportion equation
7,281,973,135.87 : 10,049,149,410.95 = 3,940,471,418.24 : x - Step 2: Convert to fraction form
7,281,973,135.87/10,049,149,410.95 = 3,940,471,418.24/x - Step 3: Cross multiply
7,281,973,135.87x = 10,049,149,410.95 × 3,940,471,418.24 - Step 4: Simplify right side
7,281,973,135.87x = 39,598,386,031,503,802,368 - Step 5: Solve for x
x = 39,598,386,031,503,802,368/7,281,973,135.87 - Step 6: Final answer
x = 5,437,864,888.08
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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.