Finding the Fourth Proportional to 3,605,641.18, 4,975,775.67 and 2,155,265.98
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Solution
The fourth proportional to 3,605,641.18, 4,975,775.67 and 2,155,265.98 is: 2,974,261.58
Step by Step Solution
- Step 1: Write the proportion equation
3,605,641.18 : 4,975,775.67 = 2,155,265.98 : x - Step 2: Convert to fraction form
3,605,641.18/4,975,775.67 = 2,155,265.98/x - Step 3: Cross multiply
3,605,641.18x = 4,975,775.67 × 2,155,265.98 - Step 4: Simplify right side
3,605,641.18x = 10,724,120,025,662.71 - Step 5: Solve for x
x = 10,724,120,025,662.71/3,605,641.18 - Step 6: Final answer
x = 2,974,261.58
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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.