Finding the Fourth Proportional to 29,125,781.46, 40,194,543.82 and 15,895,682.84
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Solution
The fourth proportional to 29,125,781.46, 40,194,543.82 and 15,895,682.84 is: 21,936,569.20
Step by Step Solution
- Step 1: Write the proportion equation
29,125,781.46 : 40,194,543.82 = 15,895,682.84 : x - Step 2: Convert to fraction form
29,125,781.46/40,194,543.82 = 15,895,682.84/x - Step 3: Cross multiply
29,125,781.46x = 40,194,543.82 × 15,895,682.84 - Step 4: Simplify right side
29,125,781.46x = 638,919,720,461,202 - Step 5: Solve for x
x = 638,919,720,461,202/29,125,781.46 - Step 6: Final answer
x = 21,936,569.20
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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.