Finding the Fourth Proportional to 354,194,064.81, 488,944,542.74 and 228,807,397.67
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Solution
The fourth proportional to 354,194,064.81, 488,944,542.74 and 228,807,397.67 is: 315,855,457.62
Step by Step Solution
- Step 1: Write the proportion equation
354,194,064.81 : 488,944,542.74 = 228,807,397.67 : x - Step 2: Convert to fraction form
354,194,064.81/488,944,542.74 = 228,807,397.67/x - Step 3: Cross multiply
354,194,064.81x = 488,944,542.74 × 228,807,397.67 - Step 4: Simplify right side
354,194,064.81x = 111,874,128,425,698,736 - Step 5: Solve for x
x = 111,874,128,425,698,736/354,194,064.81 - Step 6: Final answer
x = 315,855,457.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.