Finding the Fourth Proportional to 122,640,358.41, 169,214,597.19 and 69,712,912.14
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Solution
The fourth proportional to 122,640,358.41, 169,214,597.19 and 69,712,912.14 is: 96,187,278.80
Step by Step Solution
- Step 1: Write the proportion equation
122,640,358.41 : 169,214,597.19 = 69,712,912.14 : x - Step 2: Convert to fraction form
122,640,358.41/169,214,597.19 = 69,712,912.14/x - Step 3: Cross multiply
122,640,358.41x = 169,214,597.19 × 69,712,912.14 - Step 4: Simplify right side
122,640,358.41x = 11,796,442,346,711,960 - Step 5: Solve for x
x = 11,796,442,346,711,960/122,640,358.41 - Step 6: Final answer
x = 96,187,278.80
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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.