Finding the Fourth Proportional to 171,937,318.60, 257,905,977.90 and 149,542,438.60
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Solution
The fourth proportional to 171,937,318.60, 257,905,977.90 and 149,542,438.60 is: 224,313,657.90
Step by Step Solution
- Step 1: Write the proportion equation
171,937,318.60 : 257,905,977.90 = 149,542,438.60 : x - Step 2: Convert to fraction form
171,937,318.60/257,905,977.90 = 149,542,438.60/x - Step 3: Cross multiply
171,937,318.60x = 257,905,977.90 × 149,542,438.60 - Step 4: Simplify right side
171,937,318.60x = 38,567,888,864,683,704 - Step 5: Solve for x
x = 38,567,888,864,683,704/171,937,318.60 - Step 6: Final answer
x = 224,313,657.90
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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.