Finding the Fourth Proportional to 4,119,938.40, 6,184,054.80 and 1,991,733.60
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Solution
The fourth proportional to 4,119,938.40, 6,184,054.80 and 1,991,733.60 is: 2,989,605.31
Step by Step Solution
- Step 1: Write the proportion equation
4,119,938.40 : 6,184,054.80 = 1,991,733.60 : x - Step 2: Convert to fraction form
4,119,938.40/6,184,054.80 = 1,991,733.60/x - Step 3: Cross multiply
4,119,938.40x = 6,184,054.80 × 1,991,733.60 - Step 4: Simplify right side
4,119,938.40x = 12,316,989,729,401.28 - Step 5: Solve for x
x = 12,316,989,729,401.28/4,119,938.40 - Step 6: Final answer
x = 2,989,605.31
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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.