Finding the Fourth Proportional to 7,132,421.96, 9,842,742.20 and 4,076,701.80
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Solution
The fourth proportional to 7,132,421.96, 9,842,742.20 and 4,076,701.80 is: 5,625,848.42
Step by Step Solution
- Step 1: Write the proportion equation
7,132,421.96 : 9,842,742.20 = 4,076,701.80 : x - Step 2: Convert to fraction form
7,132,421.96/9,842,742.20 = 4,076,701.80/x - Step 3: Cross multiply
7,132,421.96x = 9,842,742.20 × 4,076,701.80 - Step 4: Simplify right side
7,132,421.96x = 40,125,924,843,675.95 - Step 5: Solve for x
x = 40,125,924,843,675.95/7,132,421.96 - Step 6: Final answer
x = 5,625,848.42
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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.