Finding the Fourth Proportional to 10,340,993.68, 15,496,971.57 and 8,172,484.75
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Solution
The fourth proportional to 10,340,993.68, 15,496,971.57 and 8,172,484.75 is: 12,247,252.80
Step by Step Solution
- Step 1: Write the proportion equation
10,340,993.68 : 15,496,971.57 = 8,172,484.75 : x - Step 2: Convert to fraction form
10,340,993.68/15,496,971.57 = 8,172,484.75/x - Step 3: Cross multiply
10,340,993.68x = 15,496,971.57 × 8,172,484.75 - Step 4: Simplify right side
10,340,993.68x = 126,648,763,827,008.56 - Step 5: Solve for x
x = 126,648,763,827,008.56/10,340,993.68 - Step 6: Final answer
x = 12,247,252.80
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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.