Finding the Fourth Proportional to 7,237,409.43, 9,987,652.32 and 3,929,708.62
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Solution
The fourth proportional to 7,237,409.43, 9,987,652.32 and 3,929,708.62 is: 5,423,012.72
Step by Step Solution
- Step 1: Write the proportion equation
7,237,409.43 : 9,987,652.32 = 3,929,708.62 : x - Step 2: Convert to fraction form
7,237,409.43/9,987,652.32 = 3,929,708.62/x - Step 3: Cross multiply
7,237,409.43x = 9,987,652.32 × 3,929,708.62 - Step 4: Simplify right side
7,237,409.43x = 39,248,563,413,215.16 - Step 5: Solve for x
x = 39,248,563,413,215.16/7,237,409.43 - Step 6: Final answer
x = 5,423,012.72
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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.