Finding the Fourth Proportional to 7,159,470.42, 9,878,340.88 and 4,219,408.42
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Solution
The fourth proportional to 7,159,470.42, 9,878,340.88 and 4,219,408.42 is: 5,821,765.05
Step by Step Solution
- Step 1: Write the proportion equation
7,159,470.42 : 9,878,340.88 = 4,219,408.42 : x - Step 2: Convert to fraction form
7,159,470.42/9,878,340.88 = 4,219,408.42/x - Step 3: Cross multiply
7,159,470.42x = 9,878,340.88 × 4,219,408.42 - Step 4: Simplify right side
7,159,470.42x = 41,680,754,684,702.21 - Step 5: Solve for x
x = 41,680,754,684,702.21/7,159,470.42 - Step 6: Final answer
x = 5,821,765.05
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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.