Finding the Fourth Proportional to 98,536,329.72, 135,974,639.79 and 54,480,682.44
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Solution
The fourth proportional to 98,536,329.72, 135,974,639.79 and 54,480,682.44 is: 75,180,303.46
Step by Step Solution
- Step 1: Write the proportion equation
98,536,329.72 : 135,974,639.79 = 54,480,682.44 : x - Step 2: Convert to fraction form
98,536,329.72/135,974,639.79 = 54,480,682.44/x - Step 3: Cross multiply
98,536,329.72x = 135,974,639.79 × 54,480,682.44 - Step 4: Simplify right side
98,536,329.72x = 7,407,991,170,292,378 - Step 5: Solve for x
x = 7,407,991,170,292,378/98,536,329.72 - Step 6: Final answer
x = 75,180,303.46
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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.