Finding the Fourth Proportional to 19,008,295.20, 28,519,441.20 and 6,229,216.80
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Solution
The fourth proportional to 19,008,295.20, 28,519,441.20 and 6,229,216.80 is: 9,346,118.65
Step by Step Solution
- Step 1: Write the proportion equation
19,008,295.20 : 28,519,441.20 = 6,229,216.80 : x - Step 2: Convert to fraction form
19,008,295.20/28,519,441.20 = 6,229,216.80/x - Step 3: Cross multiply
19,008,295.20x = 28,519,441.20 × 6,229,216.80 - Step 4: Simplify right side
19,008,295.20x = 177,653,782,249,652.16 - Step 5: Solve for x
x = 177,653,782,249,652.16/19,008,295.20 - Step 6: Final answer
x = 9,346,118.65
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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.