Finding the Fourth Proportional to 281,038,319.19, 421,307,087.67 and 133,394,792.09
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Solution
The fourth proportional to 281,038,319.19, 421,307,087.67 and 133,394,792.09 is: 199,973,340.03
Step by Step Solution
- Step 1: Write the proportion equation
281,038,319.19 : 421,307,087.67 = 133,394,792.09 : x - Step 2: Convert to fraction form
281,038,319.19/421,307,087.67 = 133,394,792.09/x - Step 3: Cross multiply
281,038,319.19x = 421,307,087.67 × 133,394,792.09 - Step 4: Simplify right side
281,038,319.19x = 56,200,171,363,676,520 - Step 5: Solve for x
x = 56,200,171,363,676,520/281,038,319.19 - Step 6: Final answer
x = 199,973,340.03
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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.