Finding the Fourth Proportional to 5,678,868.80, 8,518,303.20 and 3,553,104.80
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Solution
The fourth proportional to 5,678,868.80, 8,518,303.20 and 3,553,104.80 is: 5,329,657.20
Step by Step Solution
- Step 1: Write the proportion equation
5,678,868.80 : 8,518,303.20 = 3,553,104.80 : x - Step 2: Convert to fraction form
5,678,868.80/8,518,303.20 = 3,553,104.80/x - Step 3: Cross multiply
5,678,868.80x = 8,518,303.20 × 3,553,104.80 - Step 4: Simplify right side
5,678,868.80x = 30,266,423,987,775.36 - Step 5: Solve for x
x = 30,266,423,987,775.36/5,678,868.80 - Step 6: Final answer
x = 5,329,657.20
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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.