Finding the Fourth Proportional to 126,422,311.71, 174,461,471.64 and 74,201,258.25
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Solution
The fourth proportional to 126,422,311.71, 174,461,471.64 and 74,201,258.25 is: 102,396,962.50
Step by Step Solution
- Step 1: Write the proportion equation
126,422,311.71 : 174,461,471.64 = 74,201,258.25 : x - Step 2: Convert to fraction form
126,422,311.71/174,461,471.64 = 74,201,258.25/x - Step 3: Cross multiply
126,422,311.71x = 174,461,471.64 × 74,201,258.25 - Step 4: Simplify right side
126,422,311.71x = 12,945,260,711,834,690 - Step 5: Solve for x
x = 12,945,260,711,834,690/126,422,311.71 - Step 6: Final answer
x = 102,396,962.50
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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.