Finding the Fourth Proportional to 21,701,605.76, 32,682,318.46 and 19,764,503.31
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Solution
The fourth proportional to 21,701,605.76, 32,682,318.46 and 19,764,503.31 is: 29,765,068.94
Step by Step Solution
- Step 1: Write the proportion equation
21,701,605.76 : 32,682,318.46 = 19,764,503.31 : x - Step 2: Convert to fraction form
21,701,605.76/32,682,318.46 = 19,764,503.31/x - Step 3: Cross multiply
21,701,605.76x = 32,682,318.46 × 19,764,503.31 - Step 4: Simplify right side
21,701,605.76x = 645,949,791,565,466.88 - Step 5: Solve for x
x = 645,949,791,565,466.88/21,701,605.76 - Step 6: Final answer
x = 29,765,068.94
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.