Finding the Fourth Proportional to 8,285,862.20, 12,428,793.30 and 3,742,041.65
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Solution
The fourth proportional to 8,285,862.20, 12,428,793.30 and 3,742,041.65 is: 5,613,062.48
Step by Step Solution
- Step 1: Write the proportion equation
8,285,862.20 : 12,428,793.30 = 3,742,041.65 : x - Step 2: Convert to fraction form
8,285,862.20/12,428,793.30 = 3,742,041.65/x - Step 3: Cross multiply
8,285,862.20x = 12,428,793.30 × 3,742,041.65 - Step 4: Simplify right side
8,285,862.20x = 46,509,062,187,840.95 - Step 5: Solve for x
x = 46,509,062,187,840.95/8,285,862.20 - Step 6: Final answer
x = 5,613,062.48
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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.