Finding the Fourth Proportional to 278,840,862.40, 418,261,293.60 and 97,088,040.40
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Solution
The fourth proportional to 278,840,862.40, 418,261,293.60 and 97,088,040.40 is: 145,632,060.60
Step by Step Solution
- Step 1: Write the proportion equation
278,840,862.40 : 418,261,293.60 = 97,088,040.40 : x - Step 2: Convert to fraction form
278,840,862.40/418,261,293.60 = 97,088,040.40/x - Step 3: Cross multiply
278,840,862.40x = 418,261,293.60 × 97,088,040.40 - Step 4: Simplify right side
278,840,862.40x = 40,608,169,370,793,064 - Step 5: Solve for x
x = 40,608,169,370,793,064/278,840,862.40 - Step 6: Final answer
x = 145,632,060.60
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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.