Finding the Fourth Proportional to 7,528,036.78, 11,285,707.20 and 3,264,994.09
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Solution
The fourth proportional to 7,528,036.78, 11,285,707.20 and 3,264,994.09 is: 4,894,737.95
Step by Step Solution
- Step 1: Write the proportion equation
7,528,036.78 : 11,285,707.20 = 3,264,994.09 : x - Step 2: Convert to fraction form
7,528,036.78/11,285,707.20 = 3,264,994.09/x - Step 3: Cross multiply
7,528,036.78x = 11,285,707.20 × 3,264,994.09 - Step 4: Simplify right side
7,528,036.78x = 36,847,767,309,470.45 - Step 5: Solve for x
x = 36,847,767,309,470.45/7,528,036.78 - Step 6: Final answer
x = 4,894,737.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.