Finding the Fourth Proportional to 890,594,920.08, 1,228,979,350.98 and 494,113,690.08
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Solution
The fourth proportional to 890,594,920.08, 1,228,979,350.98 and 494,113,690.08 is: 681,853,790.60
Step by Step Solution
- Step 1: Write the proportion equation
890,594,920.08 : 1,228,979,350.98 = 494,113,690.08 : x - Step 2: Convert to fraction form
890,594,920.08/1,228,979,350.98 = 494,113,690.08/x - Step 3: Cross multiply
890,594,920.08x = 1,228,979,350.98 × 494,113,690.08 - Step 4: Simplify right side
890,594,920.08x = 607,255,522,144,851,200 - Step 5: Solve for x
x = 607,255,522,144,851,200/890,594,920.08 - Step 6: Final answer
x = 681,853,790.60
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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.