Finding the Fourth Proportional to 123,115,148.56, 169,899,070.36 and 67,365,806.68
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Solution
The fourth proportional to 123,115,148.56, 169,899,070.36 and 67,365,806.68 is: 92,964,903.69
Step by Step Solution
- Step 1: Write the proportion equation
123,115,148.56 : 169,899,070.36 = 67,365,806.68 : x - Step 2: Convert to fraction form
123,115,148.56/169,899,070.36 = 67,365,806.68/x - Step 3: Cross multiply
123,115,148.56x = 169,899,070.36 × 67,365,806.68 - Step 4: Simplify right side
123,115,148.56x = 11,445,387,928,983,480 - Step 5: Solve for x
x = 11,445,387,928,983,480/123,115,148.56 - Step 6: Final answer
x = 92,964,903.69
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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.