Finding the Fourth Proportional to 157,030,811.20, 235,437,139.14 and 69,544,654.80
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Solution
The fourth proportional to 157,030,811.20, 235,437,139.14 and 69,544,654.80 is: 104,268,674.69
Step by Step Solution
- Step 1: Write the proportion equation
157,030,811.20 : 235,437,139.14 = 69,544,654.80 : x - Step 2: Convert to fraction form
157,030,811.20/235,437,139.14 = 69,544,654.80/x - Step 3: Cross multiply
157,030,811.20x = 235,437,139.14 × 69,544,654.80 - Step 4: Simplify right side
157,030,811.20x = 16,373,394,568,590,868 - Step 5: Solve for x
x = 16,373,394,568,590,868/157,030,811.20 - Step 6: Final answer
x = 104,268,674.69
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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.