Finding the Fourth Proportional to 263,811,916.64, 395,721,242.64 and 69,721,655.07
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Solution
The fourth proportional to 263,811,916.64, 395,721,242.64 and 69,721,655.07 is: 104,583,372.64
Step by Step Solution
- Step 1: Write the proportion equation
263,811,916.64 : 395,721,242.64 = 69,721,655.07 : x - Step 2: Convert to fraction form
263,811,916.64/395,721,242.64 = 69,721,655.07/x - Step 3: Cross multiply
263,811,916.64x = 395,721,242.64 × 69,721,655.07 - Step 4: Simplify right side
263,811,916.64x = 27,590,339,984,702,600 - Step 5: Solve for x
x = 27,590,339,984,702,600/263,811,916.64 - Step 6: Final answer
x = 104,583,372.64
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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.