Finding the Fourth Proportional to 12,479,022.08, 18,706,132.56 and 8,684,533.28
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Solution
The fourth proportional to 12,479,022.08, 18,706,132.56 and 8,684,533.28 is: 13,018,169.99
Step by Step Solution
- Step 1: Write the proportion equation
12,479,022.08 : 18,706,132.56 = 8,684,533.28 : x - Step 2: Convert to fraction form
12,479,022.08/18,706,132.56 = 8,684,533.28/x - Step 3: Cross multiply
12,479,022.08x = 18,706,132.56 × 8,684,533.28 - Step 4: Simplify right side
12,479,022.08x = 162,454,030,757,411.56 - Step 5: Solve for x
x = 162,454,030,757,411.56/12,479,022.08 - Step 6: Final answer
x = 13,018,169.99
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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.