Finding the Fourth Proportional to 5,235,281.12, 7,852,693.20 and 1,640,966.16
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Solution
The fourth proportional to 5,235,281.12, 7,852,693.20 and 1,640,966.16 is: 2,461,377.62
Step by Step Solution
- Step 1: Write the proportion equation
5,235,281.12 : 7,852,693.20 = 1,640,966.16 : x - Step 2: Convert to fraction form
5,235,281.12/7,852,693.20 = 1,640,966.16/x - Step 3: Cross multiply
5,235,281.12x = 7,852,693.20 × 1,640,966.16 - Step 4: Simplify right side
5,235,281.12x = 12,886,003,806,062.11 - Step 5: Solve for x
x = 12,886,003,806,062.11/5,235,281.12 - Step 6: Final answer
x = 2,461,377.62
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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.