Finding the Fourth Proportional to 54,286,731.40, 74,890,722.36 and 48,098,090.20
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Solution
The fourth proportional to 54,286,731.40, 74,890,722.36 and 48,098,090.20 is: 66,353,243.72
Step by Step Solution
- Step 1: Write the proportion equation
54,286,731.40 : 74,890,722.36 = 48,098,090.20 : x - Step 2: Convert to fraction form
54,286,731.40/74,890,722.36 = 48,098,090.20/x - Step 3: Cross multiply
54,286,731.40x = 74,890,722.36 × 48,098,090.20 - Step 4: Simplify right side
54,286,731.40x = 3,602,100,719,214,437 - Step 5: Solve for x
x = 3,602,100,719,214,437/54,286,731.40 - Step 6: Final answer
x = 66,353,243.72
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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.