Finding the Fourth Proportional to 774,734,463.53, 1,069,124,857.30 and 422,302,721.36
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Solution
The fourth proportional to 774,734,463.53, 1,069,124,857.30 and 422,302,721.36 is: 582,773,011.88
Step by Step Solution
- Step 1: Write the proportion equation
774,734,463.53 : 1,069,124,857.30 = 422,302,721.36 : x - Step 2: Convert to fraction form
774,734,463.53/1,069,124,857.30 = 422,302,721.36/x - Step 3: Cross multiply
774,734,463.53x = 1,069,124,857.30 × 422,302,721.36 - Step 4: Simplify right side
774,734,463.53x = 451,494,336,713,028,736 - Step 5: Solve for x
x = 451,494,336,713,028,736/774,734,463.53 - Step 6: Final answer
x = 582,773,011.88
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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.