Finding the Fourth Proportional to 10,368,025.90, 15,559,814.85 and 5,316,736.30
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Solution
The fourth proportional to 10,368,025.90, 15,559,814.85 and 5,316,736.30 is: 7,979,091.99
Step by Step Solution
- Step 1: Write the proportion equation
10,368,025.90 : 15,559,814.85 = 5,316,736.30 : x - Step 2: Convert to fraction form
10,368,025.90/15,559,814.85 = 5,316,736.30/x - Step 3: Cross multiply
10,368,025.90x = 15,559,814.85 × 5,316,736.30 - Step 4: Simplify right side
10,368,025.90x = 82,727,432,434,274.05 - Step 5: Solve for x
x = 82,727,432,434,274.05/10,368,025.90 - Step 6: Final answer
x = 7,979,091.99
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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.