Finding the Fourth Proportional to 297,213,537.80, 445,820,306.70 and 78,863,457.80
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Solution
The fourth proportional to 297,213,537.80, 445,820,306.70 and 78,863,457.80 is: 118,295,186.70
Step by Step Solution
- Step 1: Write the proportion equation
297,213,537.80 : 445,820,306.70 = 78,863,457.80 : x - Step 2: Convert to fraction form
297,213,537.80/445,820,306.70 = 78,863,457.80/x - Step 3: Cross multiply
297,213,537.80x = 445,820,306.70 × 78,863,457.80 - Step 4: Simplify right side
297,213,537.80x = 35,158,930,943,818,504 - Step 5: Solve for x
x = 35,158,930,943,818,504/297,213,537.80 - Step 6: Final answer
x = 118,295,186.70
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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.