Finding the Fourth Proportional to 285,137,562.42, 393,422,394.51 and 161,378,239.50
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Solution
The fourth proportional to 285,137,562.42, 393,422,394.51 and 161,378,239.50 is: 222,663,800.82
Step by Step Solution
- Step 1: Write the proportion equation
285,137,562.42 : 393,422,394.51 = 161,378,239.50 : x - Step 2: Convert to fraction form
285,137,562.42/393,422,394.51 = 161,378,239.50/x - Step 3: Cross multiply
285,137,562.42x = 393,422,394.51 × 161,378,239.50 - Step 4: Simplify right side
285,137,562.42x = 63,489,813,405,898,264 - Step 5: Solve for x
x = 63,489,813,405,898,264/285,137,562.42 - Step 6: Final answer
x = 222,663,800.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.