Finding the Fourth Proportional to 4,255,729.60, 6,378,271.20 and 2,126,411.20
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Solution
The fourth proportional to 4,255,729.60, 6,378,271.20 and 2,126,411.20 is: 3,186,957.02
Step by Step Solution
- Step 1: Write the proportion equation
4,255,729.60 : 6,378,271.20 = 2,126,411.20 : x - Step 2: Convert to fraction form
4,255,729.60/6,378,271.20 = 2,126,411.20/x - Step 3: Cross multiply
4,255,729.60x = 6,378,271.20 × 2,126,411.20 - Step 4: Simplify right side
4,255,729.60x = 13,562,827,316,317.44 - Step 5: Solve for x
x = 13,562,827,316,317.44/4,255,729.60 - Step 6: Final answer
x = 3,186,957.02
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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.