Finding the Fourth Proportional to 2,124,463.55, 3,187,637.13 and 1,113,345.09
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Solution
The fourth proportional to 2,124,463.55, 3,187,637.13 and 1,113,345.09 is: 1,670,511.20
Step by Step Solution
- Step 1: Write the proportion equation
2,124,463.55 : 3,187,637.13 = 1,113,345.09 : x - Step 2: Convert to fraction form
2,124,463.55/3,187,637.13 = 1,113,345.09/x - Step 3: Cross multiply
2,124,463.55x = 3,187,637.13 × 1,113,345.09 - Step 4: Simplify right side
2,124,463.55x = 3,548,940,147,387.19 - Step 5: Solve for x
x = 3,548,940,147,387.19/2,124,463.55 - Step 6: Final answer
x = 1,670,511.20
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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.