Finding the Fourth Proportional to 10,178,867.80, 15,268,301.70 and 8,584,544.80
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Solution
The fourth proportional to 10,178,867.80, 15,268,301.70 and 8,584,544.80 is: 12,876,817.20
Step by Step Solution
- Step 1: Write the proportion equation
10,178,867.80 : 15,268,301.70 = 8,584,544.80 : x - Step 2: Convert to fraction form
10,178,867.80/15,268,301.70 = 8,584,544.80/x - Step 3: Cross multiply
10,178,867.80x = 15,268,301.70 × 8,584,544.80 - Step 4: Simplify right side
10,178,867.80x = 131,071,419,963,566.17 - Step 5: Solve for x
x = 131,071,419,963,566.17/10,178,867.80 - Step 6: Final answer
x = 12,876,817.20
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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.