Finding the Fourth Proportional to 864,618,171.82, 1,297,006,985.72 and 282,355,468.99
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Solution
The fourth proportional to 864,618,171.82, 1,297,006,985.72 and 282,355,468.99 is: 423,559,239.99
Step by Step Solution
- Step 1: Write the proportion equation
864,618,171.82 : 1,297,006,985.72 = 282,355,468.99 : x - Step 2: Convert to fraction form
864,618,171.82/1,297,006,985.72 = 282,355,468.99/x - Step 3: Cross multiply
864,618,171.82x = 1,297,006,985.72 × 282,355,468.99 - Step 4: Simplify right side
864,618,171.82x = 366,217,015,733,740,224 - Step 5: Solve for x
x = 366,217,015,733,740,224/864,618,171.82 - Step 6: Final answer
x = 423,559,239.99
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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.