Finding the Fourth Proportional to 13,605,215.85, 18,774,489.28 and 8,448,467.49
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Solution
The fourth proportional to 13,605,215.85, 18,774,489.28 and 8,448,467.49 is: 11,658,445.12
Step by Step Solution
- Step 1: Write the proportion equation
13,605,215.85 : 18,774,489.28 = 8,448,467.49 : x - Step 2: Convert to fraction form
13,605,215.85/18,774,489.28 = 8,448,467.49/x - Step 3: Cross multiply
13,605,215.85x = 18,774,489.28 × 8,448,467.49 - Step 4: Simplify right side
13,605,215.85x = 158,615,662,323,433.53 - Step 5: Solve for x
x = 158,615,662,323,433.53/13,605,215.85 - Step 6: Final answer
x = 11,658,445.12
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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.