Finding the Fourth Proportional to 29,125,781.21, 40,194,543.48 and 15,895,682.59
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Solution
The fourth proportional to 29,125,781.21, 40,194,543.48 and 15,895,682.59 is: 21,936,568.85
Step by Step Solution
- Step 1: Write the proportion equation
29,125,781.21 : 40,194,543.48 = 15,895,682.59 : x - Step 2: Convert to fraction form
29,125,781.21/40,194,543.48 = 15,895,682.59/x - Step 3: Cross multiply
29,125,781.21x = 40,194,543.48 × 15,895,682.59 - Step 4: Simplify right side
29,125,781.21x = 638,919,704,907,547.62 - Step 5: Solve for x
x = 638,919,704,907,547.62/29,125,781.21 - Step 6: Final answer
x = 21,936,568.85
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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.