Finding the Fourth Proportional to 408,364,502.60, 612,785,902.35 and 149,605,879.70
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Solution
The fourth proportional to 408,364,502.60, 612,785,902.35 and 149,605,879.70 is: 224,496,432.49
Step by Step Solution
- Step 1: Write the proportion equation
408,364,502.60 : 612,785,902.35 = 149,605,879.70 : x - Step 2: Convert to fraction form
408,364,502.60/612,785,902.35 = 149,605,879.70/x - Step 3: Cross multiply
408,364,502.60x = 612,785,902.35 × 149,605,879.70 - Step 4: Simplify right side
408,364,502.60x = 91,676,373,988,830,048 - Step 5: Solve for x
x = 91,676,373,988,830,048/408,364,502.60 - Step 6: Final answer
x = 224,496,432.49
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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.