Finding the Fourth Proportional to 463,278,337.68, 639,321,633.09 and 251,583,317.85
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Solution
The fourth proportional to 463,278,337.68, 639,321,633.09 and 251,583,317.85 is: 347,183,635.72
Step by Step Solution
- Step 1: Write the proportion equation
463,278,337.68 : 639,321,633.09 = 251,583,317.85 : x - Step 2: Convert to fraction form
463,278,337.68/639,321,633.09 = 251,583,317.85/x - Step 3: Cross multiply
463,278,337.68x = 639,321,633.09 × 251,583,317.85 - Step 4: Simplify right side
463,278,337.68x = 160,842,657,626,062,560 - Step 5: Solve for x
x = 160,842,657,626,062,560/463,278,337.68 - Step 6: Final answer
x = 347,183,635.72
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1.5x scale
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.