Finding the Fourth Proportional to 99,885,945.12, 149,829,110.36 and 38,504,009.36
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Solution
The fourth proportional to 99,885,945.12, 149,829,110.36 and 38,504,009.36 is: 57,756,088.31
Step by Step Solution
- Step 1: Write the proportion equation
99,885,945.12 : 149,829,110.36 = 38,504,009.36 : x - Step 2: Convert to fraction form
99,885,945.12/149,829,110.36 = 38,504,009.36/x - Step 3: Cross multiply
99,885,945.12x = 149,829,110.36 × 38,504,009.36 - Step 4: Simplify right side
99,885,945.12x = 5,769,021,467,701,913 - Step 5: Solve for x
x = 5,769,021,467,701,913/99,885,945.12 - Step 6: Final answer
x = 57,756,088.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.