Finding the Fourth Proportional to 171,695,423.37, 257,628,318.74 and 68,062,438.20
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Solution
The fourth proportional to 171,695,423.37, 257,628,318.74 and 68,062,438.20 is: 102,127,425.29
Step by Step Solution
- Step 1: Write the proportion equation
171,695,423.37 : 257,628,318.74 = 68,062,438.20 : x - Step 2: Convert to fraction form
171,695,423.37/257,628,318.74 = 68,062,438.20/x - Step 3: Cross multiply
171,695,423.37x = 257,628,318.74 × 68,062,438.20 - Step 4: Simplify right side
171,695,423.37x = 17,534,811,522,811,154 - Step 5: Solve for x
x = 17,534,811,522,811,154/171,695,423.37 - Step 6: Final answer
x = 102,127,425.29
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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.