Finding the Fourth Proportional to 855,561,284.26, 1,283,190,225.42 and 389,113,451.86
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Solution
The fourth proportional to 855,561,284.26, 1,283,190,225.42 and 389,113,451.86 is: 583,601,183.45
Step by Step Solution
- Step 1: Write the proportion equation
855,561,284.26 : 1,283,190,225.42 = 389,113,451.86 : x - Step 2: Convert to fraction form
855,561,284.26/1,283,190,225.42 = 389,113,451.86/x - Step 3: Cross multiply
855,561,284.26x = 1,283,190,225.42 × 389,113,451.86 - Step 4: Simplify right side
855,561,284.26x = 499,306,578,006,187,776 - Step 5: Solve for x
x = 499,306,578,006,187,776/855,561,284.26 - Step 6: Final answer
x = 583,601,183.45
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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.