Finding the Fourth Proportional to 285,091,630.06, 393,426,449.37 and 154,711,438.06
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Solution
The fourth proportional to 285,091,630.06, 393,426,449.37 and 154,711,438.06 is: 213,501,784.46
Step by Step Solution
- Step 1: Write the proportion equation
285,091,630.06 : 393,426,449.37 = 154,711,438.06 : x - Step 2: Convert to fraction form
285,091,630.06/393,426,449.37 = 154,711,438.06/x - Step 3: Cross multiply
285,091,630.06x = 393,426,449.37 × 154,711,438.06 - Step 4: Simplify right side
285,091,630.06x = 60,867,571,752,872,480 - Step 5: Solve for x
x = 60,867,571,752,872,480/285,091,630.06 - Step 6: Final answer
x = 213,501,784.46
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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.