Finding the Fourth Proportional to 779,376,074.09, 1,075,530,410.79 and 422,134,963.10
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Solution
The fourth proportional to 779,376,074.09, 1,075,530,410.79 and 422,134,963.10 is: 582,541,606.50
Step by Step Solution
- Step 1: Write the proportion equation
779,376,074.09 : 1,075,530,410.79 = 422,134,963.10 : x - Step 2: Convert to fraction form
779,376,074.09/1,075,530,410.79 = 422,134,963.10/x - Step 3: Cross multiply
779,376,074.09x = 1,075,530,410.79 × 422,134,963.10 - Step 4: Simplify right side
779,376,074.09x = 454,018,990,271,764,480 - Step 5: Solve for x
x = 454,018,990,271,764,480/779,376,074.09 - Step 6: Final answer
x = 582,541,606.50
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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.