Finding the Fourth Proportional to 116,564,010.87, 160,930,930.44 and 74,201,472.80
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Solution
The fourth proportional to 116,564,010.87, 160,930,930.44 and 74,201,472.80 is: 102,444,244.74
Step by Step Solution
- Step 1: Write the proportion equation
116,564,010.87 : 160,930,930.44 = 74,201,472.80 : x - Step 2: Convert to fraction form
116,564,010.87/160,930,930.44 = 74,201,472.80/x - Step 3: Cross multiply
116,564,010.87x = 160,930,930.44 × 74,201,472.80 - Step 4: Simplify right side
116,564,010.87x = 11,941,312,056,732,194 - Step 5: Solve for x
x = 11,941,312,056,732,194/116,564,010.87 - Step 6: Final answer
x = 102,444,244.74
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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.