Finding the Fourth Proportional to 494,868,974.08, 742,609,994.79 and 287,704,885.54
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Solution
The fourth proportional to 494,868,974.08, 742,609,994.79 and 287,704,885.54 is: 431,735,539.59
Step by Step Solution
- Step 1: Write the proportion equation
494,868,974.08 : 742,609,994.79 = 287,704,885.54 : x - Step 2: Convert to fraction form
494,868,974.08/742,609,994.79 = 287,704,885.54/x - Step 3: Cross multiply
494,868,974.08x = 742,609,994.79 × 287,704,885.54 - Step 4: Simplify right side
494,868,974.08x = 213,652,523,551,916,960 - Step 5: Solve for x
x = 213,652,523,551,916,960/494,868,974.08 - Step 6: Final answer
x = 431,735,539.59
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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.