Finding the Fourth Proportional to 51,135,909.12, 70,567,474.56 and 27,931,035.84
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Solution
The fourth proportional to 51,135,909.12, 70,567,474.56 and 27,931,035.84 is: 38,544,785.75
Step by Step Solution
- Step 1: Write the proportion equation
51,135,909.12 : 70,567,474.56 = 27,931,035.84 : x - Step 2: Convert to fraction form
51,135,909.12/70,567,474.56 = 27,931,035.84/x - Step 3: Cross multiply
51,135,909.12x = 70,567,474.56 × 27,931,035.84 - Step 4: Simplify right side
51,135,909.12x = 1,971,022,661,073,648.25 - Step 5: Solve for x
x = 1,971,022,661,073,648.25/51,135,909.12 - Step 6: Final answer
x = 38,544,785.75
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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.