Finding the Fourth Proportional to 66,445,397.80, 99,668,096.70 and 30,543,605.80
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Solution
The fourth proportional to 66,445,397.80, 99,668,096.70 and 30,543,605.80 is: 45,815,408.70
Step by Step Solution
- Step 1: Write the proportion equation
66,445,397.80 : 99,668,096.70 = 30,543,605.80 : x - Step 2: Convert to fraction form
66,445,397.80/99,668,096.70 = 30,543,605.80/x - Step 3: Cross multiply
66,445,397.80x = 99,668,096.70 × 30,543,605.80 - Step 4: Simplify right side
66,445,397.80x = 3,044,223,056,441,081 - Step 5: Solve for x
x = 3,044,223,056,441,081/66,445,397.80 - Step 6: Final answer
x = 45,815,408.70
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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.