Finding the Fourth Proportional to 19,337,708.80, 29,006,563.20 and 18,143,315.20
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Solution
The fourth proportional to 19,337,708.80, 29,006,563.20 and 18,143,315.20 is: 27,214,972.80
Step by Step Solution
- Step 1: Write the proportion equation
19,337,708.80 : 29,006,563.20 = 18,143,315.20 : x - Step 2: Convert to fraction form
19,337,708.80/29,006,563.20 = 18,143,315.20/x - Step 3: Cross multiply
19,337,708.80x = 29,006,563.20 × 18,143,315.20 - Step 4: Simplify right side
19,337,708.80x = 526,275,219,006,320.62 - Step 5: Solve for x
x = 526,275,219,006,320.62/19,337,708.80 - Step 6: Final answer
x = 27,214,972.80
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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.