Finding the Fourth Proportional to 18,447,139.90, 27,687,440.40 and 9,355,562.20
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Solution
The fourth proportional to 18,447,139.90, 27,687,440.40 and 9,355,562.20 is: 14,041,828.28
Step by Step Solution
- Step 1: Write the proportion equation
18,447,139.90 : 27,687,440.40 = 9,355,562.20 : x - Step 2: Convert to fraction form
18,447,139.90/27,687,440.40 = 9,355,562.20/x - Step 3: Cross multiply
18,447,139.90x = 27,687,440.40 × 9,355,562.20 - Step 4: Simplify right side
18,447,139.90x = 259,031,570,820,992.84 - Step 5: Solve for x
x = 259,031,570,820,992.84/18,447,139.90 - Step 6: Final answer
x = 14,041,828.28
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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.