Finding the Fourth Proportional to 154,864,745.89, 232,299,582.18 and 86,213,897.58
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Solution
The fourth proportional to 154,864,745.89, 232,299,582.18 and 86,213,897.58 is: 129,322,217.72
Step by Step Solution
- Step 1: Write the proportion equation
154,864,745.89 : 232,299,582.18 = 86,213,897.58 : x - Step 2: Convert to fraction form
154,864,745.89/232,299,582.18 = 86,213,897.58/x - Step 3: Cross multiply
154,864,745.89x = 232,299,582.18 × 86,213,897.58 - Step 4: Simplify right side
154,864,745.89x = 20,027,452,385,838,372 - Step 5: Solve for x
x = 20,027,452,385,838,372/154,864,745.89 - Step 6: Final answer
x = 129,322,217.72
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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.