Finding the Fourth Proportional to 142,965,465.68, 214,412,768.76 and 40,730,388.88
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Solution
The fourth proportional to 142,965,465.68, 214,412,768.76 and 40,730,388.88 is: 61,085,489.50
Step by Step Solution
- Step 1: Write the proportion equation
142,965,465.68 : 214,412,768.76 = 40,730,388.88 : x - Step 2: Convert to fraction form
142,965,465.68/214,412,768.76 = 40,730,388.88/x - Step 3: Cross multiply
142,965,465.68x = 214,412,768.76 × 40,730,388.88 - Step 4: Simplify right side
142,965,465.68x = 8,733,115,452,432,316 - Step 5: Solve for x
x = 8,733,115,452,432,316/142,965,465.68 - Step 6: Final answer
x = 61,085,489.50
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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.