Finding the Fourth Proportional to 298,215,743.88, 447,115,771.98 and 132,128,972.10
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Solution
The fourth proportional to 298,215,743.88, 447,115,771.98 and 132,128,972.10 is: 198,101,369.81
Step by Step Solution
- Step 1: Write the proportion equation
298,215,743.88 : 447,115,771.98 = 132,128,972.10 : x - Step 2: Convert to fraction form
298,215,743.88/447,115,771.98 = 132,128,972.10/x - Step 3: Cross multiply
298,215,743.88x = 447,115,771.98 × 132,128,972.10 - Step 4: Simplify right side
298,215,743.88x = 59,076,947,361,415,384 - Step 5: Solve for x
x = 59,076,947,361,415,384/298,215,743.88 - Step 6: Final answer
x = 198,101,369.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.