Finding the Fourth Proportional to 145,842,518.36, 201,262,224.96 and 78,861,007.67
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Solution
The fourth proportional to 145,842,518.36, 201,262,224.96 and 78,861,007.67 is: 108,827,947.07
Step by Step Solution
- Step 1: Write the proportion equation
145,842,518.36 : 201,262,224.96 = 78,861,007.67 : x - Step 2: Convert to fraction form
145,842,518.36/201,262,224.96 = 78,861,007.67/x - Step 3: Cross multiply
145,842,518.36x = 201,262,224.96 × 78,861,007.67 - Step 4: Simplify right side
145,842,518.36x = 15,871,741,867,558,728 - Step 5: Solve for x
x = 15,871,741,867,558,728/145,842,518.36 - Step 6: Final answer
x = 108,827,947.07
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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.