Finding the Fourth Proportional to 257,148,106.18, 354,867,262.21 and 151,324,917.05
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Solution
The fourth proportional to 257,148,106.18, 354,867,262.21 and 151,324,917.05 is: 208,830,077.80
Step by Step Solution
- Step 1: Write the proportion equation
257,148,106.18 : 354,867,262.21 = 151,324,917.05 : x - Step 2: Convert to fraction form
257,148,106.18/354,867,262.21 = 151,324,917.05/x - Step 3: Cross multiply
257,148,106.18x = 354,867,262.21 × 151,324,917.05 - Step 4: Simplify right side
257,148,106.18x = 53,700,259,018,766,696 - Step 5: Solve for x
x = 53,700,259,018,766,696/257,148,106.18 - Step 6: Final answer
x = 208,830,077.80
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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.