Finding the Fourth Proportional to 16,145,971.76, 22,286,840.28 and 9,621,647.12
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Solution
The fourth proportional to 16,145,971.76, 22,286,840.28 and 9,621,647.12 is: 13,281,090.53
Step by Step Solution
- Step 1: Write the proportion equation
16,145,971.76 : 22,286,840.28 = 9,621,647.12 : x - Step 2: Convert to fraction form
16,145,971.76/22,286,840.28 = 9,621,647.12/x - Step 3: Cross multiply
16,145,971.76x = 22,286,840.28 × 9,621,647.12 - Step 4: Simplify right side
16,145,971.76x = 214,436,112,593,962 - Step 5: Solve for x
x = 214,436,112,593,962/16,145,971.76 - Step 6: Final answer
x = 13,281,090.53
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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.