Finding the Fourth Proportional to 913,430,842.08, 1,369,839,178.56 and 331,043,181.12
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Solution
The fourth proportional to 913,430,842.08, 1,369,839,178.56 and 331,043,181.12 is: 496,453,478.91
Step by Step Solution
- Step 1: Write the proportion equation
913,430,842.08 : 1,369,839,178.56 = 331,043,181.12 : x - Step 2: Convert to fraction form
913,430,842.08/1,369,839,178.56 = 331,043,181.12/x - Step 3: Cross multiply
913,430,842.08x = 1,369,839,178.56 × 331,043,181.12 - Step 4: Simplify right side
913,430,842.08x = 453,475,919,293,310,080 - Step 5: Solve for x
x = 453,475,919,293,310,080/913,430,842.08 - Step 6: Final answer
x = 496,453,478.91
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.