Finding the Fourth Proportional to 12,879,977.66, 19,319,868.06 and 3,295,340.81
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Solution
The fourth proportional to 12,879,977.66, 19,319,868.06 and 3,295,340.81 is: 4,942,986.03
Step by Step Solution
- Step 1: Write the proportion equation
12,879,977.66 : 19,319,868.06 = 3,295,340.81 : x - Step 2: Convert to fraction form
12,879,977.66/19,319,868.06 = 3,295,340.81/x - Step 3: Cross multiply
12,879,977.66x = 19,319,868.06 × 3,295,340.81 - Step 4: Simplify right side
12,879,977.66x = 63,665,549,625,426.16 - Step 5: Solve for x
x = 63,665,549,625,426.16/12,879,977.66 - Step 6: Final answer
x = 4,942,986.03
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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.