Finding the Fourth Proportional to 85,408,040.24, 128,085,564.16 and 30,813,528.68
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Solution
The fourth proportional to 85,408,040.24, 128,085,564.16 and 30,813,528.68 is: 46,210,733.72
Step by Step Solution
- Step 1: Write the proportion equation
85,408,040.24 : 128,085,564.16 = 30,813,528.68 : x - Step 2: Convert to fraction form
85,408,040.24/128,085,564.16 = 30,813,528.68/x - Step 3: Cross multiply
85,408,040.24x = 128,085,564.16 × 30,813,528.68 - Step 4: Simplify right side
85,408,040.24x = 3,946,768,204,738,140 - Step 5: Solve for x
x = 3,946,768,204,738,140/85,408,040.24 - Step 6: Final answer
x = 46,210,733.72
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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.