Finding the Fourth Proportional to 12,368,618.10, 18,552,927.15 and 5,188,259.70
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Solution
The fourth proportional to 12,368,618.10, 18,552,927.15 and 5,188,259.70 is: 7,782,389.55
Step by Step Solution
- Step 1: Write the proportion equation
12,368,618.10 : 18,552,927.15 = 5,188,259.70 : x - Step 2: Convert to fraction form
12,368,618.10/18,552,927.15 = 5,188,259.70/x - Step 3: Cross multiply
12,368,618.10x = 18,552,927.15 × 5,188,259.70 - Step 4: Simplify right side
12,368,618.10x = 96,257,404,249,380.84 - Step 5: Solve for x
x = 96,257,404,249,380.84/12,368,618.10 - Step 6: Final answer
x = 7,782,389.55
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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.