Finding the Fourth Proportional to 29,645,019.88, 40,877,640.90 and 19,312,582.12
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Solution
The fourth proportional to 29,645,019.88, 40,877,640.90 and 19,312,582.12 is: 26,630,199.61
Step by Step Solution
- Step 1: Write the proportion equation
29,645,019.88 : 40,877,640.90 = 19,312,582.12 : x - Step 2: Convert to fraction form
29,645,019.88/40,877,640.90 = 19,312,582.12/x - Step 3: Cross multiply
29,645,019.88x = 40,877,640.90 × 19,312,582.12 - Step 4: Simplify right side
29,645,019.88x = 789,452,796,753,120.75 - Step 5: Solve for x
x = 789,452,796,753,120.75/29,645,019.88 - Step 6: Final answer
x = 26,630,199.61
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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.