Finding the Fourth Proportional to 426,127,357.63, 587,888,436.67 and 247,480,835.05
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Solution
The fourth proportional to 426,127,357.63, 587,888,436.67 and 247,480,835.05 is: 341,426,380.21
Step by Step Solution
- Step 1: Write the proportion equation
426,127,357.63 : 587,888,436.67 = 247,480,835.05 : x - Step 2: Convert to fraction form
426,127,357.63/587,888,436.67 = 247,480,835.05/x - Step 3: Cross multiply
426,127,357.63x = 587,888,436.67 × 247,480,835.05 - Step 4: Simplify right side
426,127,357.63x = 145,491,121,223,330,624 - Step 5: Solve for x
x = 145,491,121,223,330,624/426,127,357.63 - Step 6: Final answer
x = 341,426,380.21
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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.