Finding the Fourth Proportional to 6,473,986.79, 8,934,102.56 and 3,573,378.45
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Solution
The fourth proportional to 6,473,986.79, 8,934,102.56 and 3,573,378.45 is: 4,931,262.69
Step by Step Solution
- Step 1: Write the proportion equation
6,473,986.79 : 8,934,102.56 = 3,573,378.45 : x - Step 2: Convert to fraction form
6,473,986.79/8,934,102.56 = 3,573,378.45/x - Step 3: Cross multiply
6,473,986.79x = 8,934,102.56 × 3,573,378.45 - Step 4: Simplify right side
6,473,986.79x = 31,924,929,540,126.94 - Step 5: Solve for x
x = 31,924,929,540,126.94/6,473,986.79 - Step 6: Final answer
x = 4,931,262.69
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1.5x scale
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.