Finding the Fourth Proportional to 11,997,860.28, 18,000,989.10 and 3,478,707.96
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Solution
The fourth proportional to 11,997,860.28, 18,000,989.10 and 3,478,707.96 is: 5,219,279.32
Step by Step Solution
- Step 1: Write the proportion equation
11,997,860.28 : 18,000,989.10 = 3,478,707.96 : x - Step 2: Convert to fraction form
11,997,860.28/18,000,989.10 = 3,478,707.96/x - Step 3: Cross multiply
11,997,860.28x = 18,000,989.10 × 3,478,707.96 - Step 4: Simplify right side
11,997,860.28x = 62,620,184,070,043.24 - Step 5: Solve for x
x = 62,620,184,070,043.24/11,997,860.28 - Step 6: Final answer
x = 5,219,279.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.