Finding the Fourth Proportional to 13,490,297.34, 18,622,689.97 and 8,602,089.90
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Solution
The fourth proportional to 13,490,297.34, 18,622,689.97 and 8,602,089.90 is: 11,874,760.75
Step by Step Solution
- Step 1: Write the proportion equation
13,490,297.34 : 18,622,689.97 = 8,602,089.90 : x - Step 2: Convert to fraction form
13,490,297.34/18,622,689.97 = 8,602,089.90/x - Step 3: Cross multiply
13,490,297.34x = 18,622,689.97 × 8,602,089.90 - Step 4: Simplify right side
13,490,297.34x = 160,194,053,301,768.31 - Step 5: Solve for x
x = 160,194,053,301,768.31/13,490,297.34 - Step 6: Final answer
x = 11,874,760.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.