Finding the Fourth Proportional to 465,216,586.82, 641,999,023.20 and 253,523,475.58
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Solution
The fourth proportional to 465,216,586.82, 641,999,023.20 and 253,523,475.58 is: 349,862,468.99
Step by Step Solution
- Step 1: Write the proportion equation
465,216,586.82 : 641,999,023.20 = 253,523,475.58 : x - Step 2: Convert to fraction form
465,216,586.82/641,999,023.20 = 253,523,475.58/x - Step 3: Cross multiply
465,216,586.82x = 641,999,023.20 × 253,523,475.58 - Step 4: Simplify right side
465,216,586.82x = 162,761,823,680,629,088 - Step 5: Solve for x
x = 162,761,823,680,629,088/465,216,586.82 - Step 6: Final answer
x = 349,862,468.99
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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.