Finding the Fourth Proportional to 263,811,834.60, 395,721,119.70 and 69,721,573.02
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Solution
The fourth proportional to 263,811,834.60, 395,721,119.70 and 69,721,573.02 is: 104,583,249.59
Step by Step Solution
- Step 1: Write the proportion equation
263,811,834.60 : 395,721,119.70 = 69,721,573.02 : x - Step 2: Convert to fraction form
263,811,834.60/395,721,119.70 = 69,721,573.02/x - Step 3: Cross multiply
263,811,834.60x = 395,721,119.70 × 69,721,573.02 - Step 4: Simplify right side
263,811,834.60x = 27,590,298,942,719,708 - Step 5: Solve for x
x = 27,590,298,942,719,708/263,811,834.60 - Step 6: Final answer
x = 104,583,249.59
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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.