Finding the Fourth Proportional to 6,138,279.87, 8,470,887.98 and 3,385,077.19
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Solution
The fourth proportional to 6,138,279.87, 8,470,887.98 and 3,385,077.19 is: 4,671,440.58
Step by Step Solution
- Step 1: Write the proportion equation
6,138,279.87 : 8,470,887.98 = 3,385,077.19 : x - Step 2: Convert to fraction form
6,138,279.87/8,470,887.98 = 3,385,077.19/x - Step 3: Cross multiply
6,138,279.87x = 8,470,887.98 × 3,385,077.19 - Step 4: Simplify right side
6,138,279.87x = 28,674,609,680,143.18 - Step 5: Solve for x
x = 28,674,609,680,143.18/6,138,279.87 - Step 6: Final answer
x = 4,671,440.58
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1.5x scale
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.