Finding the Fourth Proportional to 9,378,963.60, 14,067,133.20 and 2,989,861.80
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Solution
The fourth proportional to 9,378,963.60, 14,067,133.20 and 2,989,861.80 is: 4,484,374.39
Step by Step Solution
- Step 1: Write the proportion equation
9,378,963.60 : 14,067,133.20 = 2,989,861.80 : x - Step 2: Convert to fraction form
9,378,963.60/14,067,133.20 = 2,989,861.80/x - Step 3: Cross multiply
9,378,963.60x = 14,067,133.20 × 2,989,861.80 - Step 4: Simplify right side
9,378,963.60x = 42,058,784,190,191.76 - Step 5: Solve for x
x = 42,058,784,190,191.76/9,378,963.60 - Step 6: Final answer
x = 4,484,374.39
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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.