Finding the Fourth Proportional to 7,528,552.80, 11,292,829.20 and 5,418,535.20
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Solution
The fourth proportional to 7,528,552.80, 11,292,829.20 and 5,418,535.20 is: 8,127,802.80
Step by Step Solution
- Step 1: Write the proportion equation
7,528,552.80 : 11,292,829.20 = 5,418,535.20 : x - Step 2: Convert to fraction form
7,528,552.80/11,292,829.20 = 5,418,535.20/x - Step 3: Cross multiply
7,528,552.80x = 11,292,829.20 × 5,418,535.20 - Step 4: Simplify right side
7,528,552.80x = 61,190,592,527,787.84 - Step 5: Solve for x
x = 61,190,592,527,787.84/7,528,552.80 - Step 6: Final answer
x = 8,127,802.80
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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.