Finding the Fourth Proportional to 13,201,214.03, 18,219,543.18 and 7,322,147.99
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Solution
The fourth proportional to 13,201,214.03, 18,219,543.18 and 7,322,147.99 is: 10,105,600.23
Step by Step Solution
- Step 1: Write the proportion equation
13,201,214.03 : 18,219,543.18 = 7,322,147.99 : x - Step 2: Convert to fraction form
13,201,214.03/18,219,543.18 = 7,322,147.99/x - Step 3: Cross multiply
13,201,214.03x = 18,219,543.18 × 7,322,147.99 - Step 4: Simplify right side
13,201,214.03x = 133,406,191,474,155.20 - Step 5: Solve for x
x = 133,406,191,474,155.20/13,201,214.03 - Step 6: Final answer
x = 10,105,600.23
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.