Finding the Fourth Proportional to 10,257,907.30, 15,386,860.95 and 9,785,515.30
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Solution
The fourth proportional to 10,257,907.30, 15,386,860.95 and 9,785,515.30 is: 14,678,272.95
Step by Step Solution
- Step 1: Write the proportion equation
10,257,907.30 : 15,386,860.95 = 9,785,515.30 : x - Step 2: Convert to fraction form
10,257,907.30/15,386,860.95 = 9,785,515.30/x - Step 3: Cross multiply
10,257,907.30x = 15,386,860.95 × 9,785,515.30 - Step 4: Simplify right side
10,257,907.30x = 150,568,363,245,197.53 - Step 5: Solve for x
x = 150,568,363,245,197.53/10,257,907.30 - Step 6: Final answer
x = 14,678,272.95
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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.