Finding the Fourth Proportional to 381,271,129.21, 526,125,283.05 and 213,975,080.12
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Solution
The fourth proportional to 381,271,129.21, 526,125,283.05 and 213,975,080.12 is: 295,269,405.34
Step by Step Solution
- Step 1: Write the proportion equation
381,271,129.21 : 526,125,283.05 = 213,975,080.12 : x - Step 2: Convert to fraction form
381,271,129.21/526,125,283.05 = 213,975,080.12/x - Step 3: Cross multiply
381,271,129.21x = 526,125,283.05 × 213,975,080.12 - Step 4: Simplify right side
381,271,129.21x = 112,577,699,595,899,152 - Step 5: Solve for x
x = 112,577,699,595,899,152/381,271,129.21 - Step 6: Final answer
x = 295,269,405.34
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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.