Finding the Fourth Proportional to 4,990,335.74, 7,489,702.64 and 4,675,407.74
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Solution
The fourth proportional to 4,990,335.74, 7,489,702.64 and 4,675,407.74 is: 7,017,045.65
Step by Step Solution
- Step 1: Write the proportion equation
4,990,335.74 : 7,489,702.64 = 4,675,407.74 : x - Step 2: Convert to fraction form
4,990,335.74/7,489,702.64 = 4,675,407.74/x - Step 3: Cross multiply
4,990,335.74x = 7,489,702.64 × 4,675,407.74 - Step 4: Simplify right side
4,990,335.74x = 35,017,413,693,354.43 - Step 5: Solve for x
x = 35,017,413,693,354.43/4,990,335.74 - Step 6: Final answer
x = 7,017,045.65
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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.