Finding the Fourth Proportional to 43,115,595.20, 64,682,378.40 and 14,370,660.80
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Solution
The fourth proportional to 43,115,595.20, 64,682,378.40 and 14,370,660.80 is: 21,558,986.15
Step by Step Solution
- Step 1: Write the proportion equation
43,115,595.20 : 64,682,378.40 = 14,370,660.80 : x - Step 2: Convert to fraction form
43,115,595.20/64,682,378.40 = 14,370,660.80/x - Step 3: Cross multiply
43,115,595.20x = 64,682,378.40 × 14,370,660.80 - Step 4: Simplify right side
43,115,595.20x = 929,528,519,723,646.75 - Step 5: Solve for x
x = 929,528,519,723,646.75/43,115,595.20 - Step 6: Final answer
x = 21,558,986.15
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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.