Finding the Fourth Proportional to 138,179,512.38, 207,341,002.18 and 56,358,418.62
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Solution
The fourth proportional to 138,179,512.38, 207,341,002.18 and 56,358,418.62 is: 84,566,885.47
Step by Step Solution
- Step 1: Write the proportion equation
138,179,512.38 : 207,341,002.18 = 56,358,418.62 : x - Step 2: Convert to fraction form
138,179,512.38/207,341,002.18 = 56,358,418.62/x - Step 3: Cross multiply
138,179,512.38x = 207,341,002.18 × 56,358,418.62 - Step 4: Simplify right side
138,179,512.38x = 11,685,410,997,950,772 - Step 5: Solve for x
x = 11,685,410,997,950,772/138,179,512.38 - Step 6: Final answer
x = 84,566,885.47
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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.