Finding the Fourth Proportional to 4,639,540.14, 6,402,712.21 and 2,679,382.74
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Solution
The fourth proportional to 4,639,540.14, 6,402,712.21 and 2,679,382.74 is: 3,697,632.96
Step by Step Solution
- Step 1: Write the proportion equation
4,639,540.14 : 6,402,712.21 = 2,679,382.74 : x - Step 2: Convert to fraction form
4,639,540.14/6,402,712.21 = 2,679,382.74/x - Step 3: Cross multiply
4,639,540.14x = 6,402,712.21 × 2,679,382.74 - Step 4: Simplify right side
4,639,540.14x = 17,155,316,553,952.63 - Step 5: Solve for x
x = 17,155,316,553,952.63/4,639,540.14 - Step 6: Final answer
x = 3,697,632.96
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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.