Finding the Fourth Proportional to 126,422,309.71, 174,461,468.88 and 74,201,256.24
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Solution
The fourth proportional to 126,422,309.71, 174,461,468.88 and 74,201,256.24 is: 102,396,959.73
Step by Step Solution
- Step 1: Write the proportion equation
126,422,309.71 : 174,461,468.88 = 74,201,256.24 : x - Step 2: Convert to fraction form
126,422,309.71/174,461,468.88 = 74,201,256.24/x - Step 3: Cross multiply
126,422,309.71x = 174,461,468.88 × 74,201,256.24 - Step 4: Simplify right side
126,422,309.71x = 12,945,260,156,371,664 - Step 5: Solve for x
x = 12,945,260,156,371,664/126,422,309.71 - Step 6: Final answer
x = 102,396,959.73
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1.5x scale
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.