Finding the Fourth Proportional to 402,495,358.38, 555,445,475.55 and 228,664,640.94
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Solution
The fourth proportional to 402,495,358.38, 555,445,475.55 and 228,664,640.94 is: 315,558,273.12
Step by Step Solution
- Step 1: Write the proportion equation
402,495,358.38 : 555,445,475.55 = 228,664,640.94 : x - Step 2: Convert to fraction form
402,495,358.38/555,445,475.55 = 228,664,640.94/x - Step 3: Cross multiply
402,495,358.38x = 555,445,475.55 × 228,664,640.94 - Step 4: Simplify right side
402,495,358.38x = 127,010,740,228,388,288 - Step 5: Solve for x
x = 127,010,740,228,388,288/402,495,358.38 - Step 6: Final answer
x = 315,558,273.12
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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.