Finding the Fourth Proportional to 122,576,309.92, 169,156,448.76 and 67,574,134.72
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Solution
The fourth proportional to 122,576,309.92, 169,156,448.76 and 67,574,134.72 is: 93,252,934.97
Step by Step Solution
- Step 1: Write the proportion equation
122,576,309.92 : 169,156,448.76 = 67,574,134.72 : x - Step 2: Convert to fraction form
122,576,309.92/169,156,448.76 = 67,574,134.72/x - Step 3: Cross multiply
122,576,309.92x = 169,156,448.76 × 67,574,134.72 - Step 4: Simplify right side
122,576,309.92x = 11,430,600,657,265,016 - Step 5: Solve for x
x = 11,430,600,657,265,016/122,576,309.92 - Step 6: Final answer
x = 93,252,934.97
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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.