Finding the Fourth Proportional to 68,090,423.82, 102,128,067.45 and 24,369,416.70
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Solution
The fourth proportional to 68,090,423.82, 102,128,067.45 and 24,369,416.70 is: 36,551,416.38
Step by Step Solution
- Step 1: Write the proportion equation
68,090,423.82 : 102,128,067.45 = 24,369,416.70 : x - Step 2: Convert to fraction form
68,090,423.82/102,128,067.45 = 24,369,416.70/x - Step 3: Cross multiply
68,090,423.82x = 102,128,067.45 × 24,369,416.70 - Step 4: Simplify right side
68,090,423.82x = 2,488,801,432,454,756.50 - Step 5: Solve for x
x = 2,488,801,432,454,756.50/68,090,423.82 - Step 6: Final answer
x = 36,551,416.38
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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.