Finding the Fourth Proportional to 115,830,328.05, 159,848,974.53 and 68,148,910.98
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Solution
The fourth proportional to 115,830,328.05, 159,848,974.53 and 68,148,910.98 is: 94,047,333.88
Step by Step Solution
- Step 1: Write the proportion equation
115,830,328.05 : 159,848,974.53 = 68,148,910.98 : x - Step 2: Convert to fraction form
115,830,328.05/159,848,974.53 = 68,148,910.98/x - Step 3: Cross multiply
115,830,328.05x = 159,848,974.53 × 68,148,910.98 - Step 4: Simplify right side
115,830,328.05x = 10,893,533,535,489,258 - Step 5: Solve for x
x = 10,893,533,535,489,258/115,830,328.05 - Step 6: Final answer
x = 94,047,333.88
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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.