Finding the Fourth Proportional to 9,264,815.84, 12,785,447.09 and 5,135,113.31
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Solution
The fourth proportional to 9,264,815.84, 12,785,447.09 and 5,135,113.31 is: 7,086,457.05
Step by Step Solution
- Step 1: Write the proportion equation
9,264,815.84 : 12,785,447.09 = 5,135,113.31 : x - Step 2: Convert to fraction form
9,264,815.84/12,785,447.09 = 5,135,113.31/x - Step 3: Cross multiply
9,264,815.84x = 12,785,447.09 × 5,135,113.31 - Step 4: Simplify right side
9,264,815.84x = 65,654,719,525,323.41 - Step 5: Solve for x
x = 65,654,719,525,323.41/9,264,815.84 - Step 6: Final answer
x = 7,086,457.05
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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.