Finding the Fourth Proportional to 10,780,467.80, 16,170,701.70 and 4,395,302.60
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Solution
The fourth proportional to 10,780,467.80, 16,170,701.70 and 4,395,302.60 is: 6,592,953.90
Step by Step Solution
- Step 1: Write the proportion equation
10,780,467.80 : 16,170,701.70 = 4,395,302.60 : x - Step 2: Convert to fraction form
10,780,467.80/16,170,701.70 = 4,395,302.60/x - Step 3: Cross multiply
10,780,467.80x = 16,170,701.70 × 4,395,302.60 - Step 4: Simplify right side
10,780,467.80x = 71,075,127,225,834.41 - Step 5: Solve for x
x = 71,075,127,225,834.41/10,780,467.80 - Step 6: Final answer
x = 6,592,953.90
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Double scale
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Similar ratio
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1.5x scale
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.