Finding the Fourth Proportional to 398,971,567.80, 598,457,351.70 and 381,965,455.80
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Solution
The fourth proportional to 398,971,567.80, 598,457,351.70 and 381,965,455.80 is: 572,948,183.70
Step by Step Solution
- Step 1: Write the proportion equation
398,971,567.80 : 598,457,351.70 = 381,965,455.80 : x - Step 2: Convert to fraction form
398,971,567.80/598,457,351.70 = 381,965,455.80/x - Step 3: Cross multiply
398,971,567.80x = 598,457,351.70 × 381,965,455.80 - Step 4: Simplify right side
398,971,567.80x = 228,590,035,118,951,424 - Step 5: Solve for x
x = 228,590,035,118,951,424/398,971,567.80 - Step 6: Final answer
x = 572,948,183.70
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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.