Finding the Fourth Proportional to 230,867,847.74, 318,591,532.09 and 131,746,818.53
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Solution
The fourth proportional to 230,867,847.74, 318,591,532.09 and 131,746,818.53 is: 181,807,129.81
Step by Step Solution
- Step 1: Write the proportion equation
230,867,847.74 : 318,591,532.09 = 131,746,818.53 : x - Step 2: Convert to fraction form
230,867,847.74/318,591,532.09 = 131,746,818.53/x - Step 3: Cross multiply
230,867,847.74x = 318,591,532.09 × 131,746,818.53 - Step 4: Simplify right side
230,867,847.74x = 41,973,420,764,417,064 - Step 5: Solve for x
x = 41,973,420,764,417,064/230,867,847.74 - Step 6: Final answer
x = 181,807,129.81
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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.