Finding the Fourth Proportional to 122,458,577.21, 168,992,845.68 and 67,454,433.71
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Solution
The fourth proportional to 122,458,577.21, 168,992,845.68 and 67,454,433.71 is: 93,087,123.55
Step by Step Solution
- Step 1: Write the proportion equation
122,458,577.21 : 168,992,845.68 = 67,454,433.71 : x - Step 2: Convert to fraction form
122,458,577.21/168,992,845.68 = 67,454,433.71/x - Step 3: Cross multiply
122,458,577.21x = 168,992,845.68 × 67,454,433.71 - Step 4: Simplify right side
122,458,577.21x = 11,399,316,705,793,810 - Step 5: Solve for x
x = 11,399,316,705,793,810/122,458,577.21 - Step 6: Final answer
x = 93,087,123.55
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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.