Finding the Fourth Proportional to 21,299,502.98, 31,949,252.90 and 5,125,455.96
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Solution
The fourth proportional to 21,299,502.98, 31,949,252.90 and 5,125,455.96 is: 7,688,183.56
Step by Step Solution
- Step 1: Write the proportion equation
21,299,502.98 : 31,949,252.90 = 5,125,455.96 : x - Step 2: Convert to fraction form
21,299,502.98/31,949,252.90 = 5,125,455.96/x - Step 3: Cross multiply
21,299,502.98x = 31,949,252.90 × 5,125,455.96 - Step 4: Simplify right side
21,299,502.98x = 163,754,488,643,075.12 - Step 5: Solve for x
x = 163,754,488,643,075.12/21,299,502.98 - Step 6: Final answer
x = 7,688,183.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.