Finding the Fourth Proportional to 168,649,511.53, 232,726,669.17 and 93,291,343.81
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Solution
The fourth proportional to 168,649,511.53, 232,726,669.17 and 93,291,343.81 is: 128,736,712.67
Step by Step Solution
- Step 1: Write the proportion equation
168,649,511.53 : 232,726,669.17 = 93,291,343.81 : x - Step 2: Convert to fraction form
168,649,511.53/232,726,669.17 = 93,291,343.81/x - Step 3: Cross multiply
168,649,511.53x = 232,726,669.17 × 93,291,343.81 - Step 4: Simplify right side
168,649,511.53x = 21,711,383,707,294,596 - Step 5: Solve for x
x = 21,711,383,707,294,596/168,649,511.53 - Step 6: Final answer
x = 128,736,712.67
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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.