Finding the Fourth Proportional to 548,756,171.19, 757,263,923.06 and 310,596,245.19
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Solution
The fourth proportional to 548,756,171.19, 757,263,923.06 and 310,596,245.19 is: 428,611,728.61
Step by Step Solution
- Step 1: Write the proportion equation
548,756,171.19 : 757,263,923.06 = 310,596,245.19 : x - Step 2: Convert to fraction form
548,756,171.19/757,263,923.06 = 310,596,245.19/x - Step 3: Cross multiply
548,756,171.19x = 757,263,923.06 × 310,596,245.19 - Step 4: Simplify right side
548,756,171.19x = 235,203,331,118,732,064 - Step 5: Solve for x
x = 235,203,331,118,732,064/548,756,171.19 - Step 6: Final answer
x = 428,611,728.61
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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.