Finding the Fourth Proportional to 19,359,862.20, 29,039,793.30 and 18,509,556.60
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Solution
The fourth proportional to 19,359,862.20, 29,039,793.30 and 18,509,556.60 is: 27,764,334.90
Step by Step Solution
- Step 1: Write the proportion equation
19,359,862.20 : 29,039,793.30 = 18,509,556.60 : x - Step 2: Convert to fraction form
19,359,862.20/29,039,793.30 = 18,509,556.60/x - Step 3: Cross multiply
19,359,862.20x = 29,039,793.30 × 18,509,556.60 - Step 4: Simplify right side
19,359,862.20x = 537,513,697,738,650.81 - Step 5: Solve for x
x = 537,513,697,738,650.81/19,359,862.20 - Step 6: Final answer
x = 27,764,334.90
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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.