Finding the Fourth Proportional to 168,190,459.40, 232,096,315.74 and 93,847,156.04
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Solution
The fourth proportional to 168,190,459.40, 232,096,315.74 and 93,847,156.04 is: 129,505,438.28
Step by Step Solution
- Step 1: Write the proportion equation
168,190,459.40 : 232,096,315.74 = 93,847,156.04 : x - Step 2: Convert to fraction form
168,190,459.40/232,096,315.74 = 93,847,156.04/x - Step 3: Cross multiply
168,190,459.40x = 232,096,315.74 × 93,847,156.04 - Step 4: Simplify right side
168,190,459.40x = 21,781,579,159,560,892 - Step 5: Solve for x
x = 21,781,579,159,560,892/168,190,459.40 - Step 6: Final answer
x = 129,505,438.28
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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.