Finding the Fourth Proportional to 402,495,358.19, 555,445,475.29 and 228,664,640.75
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Solution
The fourth proportional to 402,495,358.19, 555,445,475.29 and 228,664,640.75 is: 315,558,272.86
Step by Step Solution
- Step 1: Write the proportion equation
402,495,358.19 : 555,445,475.29 = 228,664,640.75 : x - Step 2: Convert to fraction form
402,495,358.19/555,445,475.29 = 228,664,640.75/x - Step 3: Cross multiply
402,495,358.19x = 555,445,475.29 × 228,664,640.75 - Step 4: Simplify right side
402,495,358.19x = 127,010,740,065,075,296 - Step 5: Solve for x
x = 127,010,740,065,075,296/402,495,358.19 - Step 6: Final answer
x = 315,558,272.86
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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.