Finding the Fourth Proportional to 7,121,534.84, 10,682,314.56 and 1,730,188.92
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Solution
The fourth proportional to 7,121,534.84, 10,682,314.56 and 1,730,188.92 is: 2,595,286.37
Step by Step Solution
- Step 1: Write the proportion equation
7,121,534.84 : 10,682,314.56 = 1,730,188.92 : x - Step 2: Convert to fraction form
7,121,534.84/10,682,314.56 = 1,730,188.92/x - Step 3: Cross multiply
7,121,534.84x = 10,682,314.56 × 1,730,188.92 - Step 4: Simplify right side
7,121,534.84x = 18,482,422,291,666.68 - Step 5: Solve for x
x = 18,482,422,291,666.68/7,121,534.84 - Step 6: Final answer
x = 2,595,286.37
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1.5x scale
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.