Finding the Fourth Proportional to 18,717,809.20, 28,076,713.80 and 6,587,176.30
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Solution
The fourth proportional to 18,717,809.20, 28,076,713.80 and 6,587,176.30 is: 9,880,764.45
Step by Step Solution
- Step 1: Write the proportion equation
18,717,809.20 : 28,076,713.80 = 6,587,176.30 : x - Step 2: Convert to fraction form
18,717,809.20/28,076,713.80 = 6,587,176.30/x - Step 3: Cross multiply
18,717,809.20x = 28,076,713.80 × 6,587,176.30 - Step 4: Simplify right side
18,717,809.20x = 184,946,263,725,242.94 - Step 5: Solve for x
x = 184,946,263,725,242.94/18,717,809.20 - Step 6: Final answer
x = 9,880,764.45
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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.