Finding the Fourth Proportional to 656,190,726.40, 983,489,827.20 and 292,298,809.60
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Solution
The fourth proportional to 656,190,726.40, 983,489,827.20 and 292,298,809.60 is: 438,093,520.95
Step by Step Solution
- Step 1: Write the proportion equation
656,190,726.40 : 983,489,827.20 = 292,298,809.60 : x - Step 2: Convert to fraction form
656,190,726.40/983,489,827.20 = 292,298,809.60/x - Step 3: Cross multiply
656,190,726.40x = 983,489,827.20 × 292,298,809.60 - Step 4: Simplify right side
656,190,726.40x = 287,472,905,744,269,728 - Step 5: Solve for x
x = 287,472,905,744,269,728/656,190,726.40 - Step 6: Final answer
x = 438,093,520.95
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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.