Finding the Fourth Proportional to 9,770,633.84, 13,485,088.68 and 5,421,119.60
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Solution
The fourth proportional to 9,770,633.84, 13,485,088.68 and 5,421,119.60 is: 7,482,040.55
Step by Step Solution
- Step 1: Write the proportion equation
9,770,633.84 : 13,485,088.68 = 5,421,119.60 : x - Step 2: Convert to fraction form
9,770,633.84/13,485,088.68 = 5,421,119.60/x - Step 3: Cross multiply
9,770,633.84x = 13,485,088.68 × 5,421,119.60 - Step 4: Simplify right side
9,770,633.84x = 73,104,278,550,886.12 - Step 5: Solve for x
x = 73,104,278,550,886.12/9,770,633.84 - Step 6: Final answer
x = 7,482,040.55
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1.5x scale
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.