Finding the Fourth Proportional to 7,538,639.24, 10,403,529.24 and 4,231,139.12
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Solution
The fourth proportional to 7,538,639.24, 10,403,529.24 and 4,231,139.12 is: 5,839,088.22
Step by Step Solution
- Step 1: Write the proportion equation
7,538,639.24 : 10,403,529.24 = 4,231,139.12 : x - Step 2: Convert to fraction form
7,538,639.24/10,403,529.24 = 4,231,139.12/x - Step 3: Cross multiply
7,538,639.24x = 10,403,529.24 × 4,231,139.12 - Step 4: Simplify right side
7,538,639.24x = 44,018,779,553,427.87 - Step 5: Solve for x
x = 44,018,779,553,427.87/7,538,639.24 - Step 6: Final answer
x = 5,839,088.22
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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.