Finding the Fourth Proportional to 310,373,439.87, 428,155,056.99 and 192,854,120.07
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Solution
The fourth proportional to 310,373,439.87, 428,155,056.99 and 192,854,120.07 is: 266,039,087.64
Step by Step Solution
- Step 1: Write the proportion equation
310,373,439.87 : 428,155,056.99 = 192,854,120.07 : x - Step 2: Convert to fraction form
310,373,439.87/428,155,056.99 = 192,854,120.07/x - Step 3: Cross multiply
310,373,439.87x = 428,155,056.99 × 192,854,120.07 - Step 4: Simplify right side
310,373,439.87x = 82,571,466,769,327,152 - Step 5: Solve for x
x = 82,571,466,769,327,152/310,373,439.87 - Step 6: Final answer
x = 266,039,087.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.