Finding the Fourth Proportional to 494,868,973.08, 742,609,993.29 and 287,704,884.54
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Solution
The fourth proportional to 494,868,973.08, 742,609,993.29 and 287,704,884.54 is: 431,735,538.09
Step by Step Solution
- Step 1: Write the proportion equation
494,868,973.08 : 742,609,993.29 = 287,704,884.54 : x - Step 2: Convert to fraction form
494,868,973.08/742,609,993.29 = 287,704,884.54/x - Step 3: Cross multiply
494,868,973.08x = 742,609,993.29 × 287,704,884.54 - Step 4: Simplify right side
494,868,973.08x = 213,652,522,377,749,632 - Step 5: Solve for x
x = 213,652,522,377,749,632/494,868,973.08 - Step 6: Final answer
x = 431,735,538.09
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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.