Finding the Fourth Proportional to 7,385,853.80, 10,194,178.86 and 4,331,052.20
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Solution
The fourth proportional to 7,385,853.80, 10,194,178.86 and 4,331,052.20 is: 5,977,849.28
Step by Step Solution
- Step 1: Write the proportion equation
7,385,853.80 : 10,194,178.86 = 4,331,052.20 : x - Step 2: Convert to fraction form
7,385,853.80/10,194,178.86 = 4,331,052.20/x - Step 3: Cross multiply
7,385,853.80x = 10,194,178.86 × 4,331,052.20 - Step 4: Simplify right side
7,385,853.80x = 44,151,520,804,281.93 - Step 5: Solve for x
x = 44,151,520,804,281.93/7,385,853.80 - Step 6: Final answer
x = 5,977,849.28
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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.