Finding the Fourth Proportional to 864,618,165.90, 1,297,006,976.79 and 282,355,463.07
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Solution
The fourth proportional to 864,618,165.90, 1,297,006,976.79 and 282,355,463.07 is: 423,559,231.09
Step by Step Solution
- Step 1: Write the proportion equation
864,618,165.90 : 1,297,006,976.79 = 282,355,463.07 : x - Step 2: Convert to fraction form
864,618,165.90/1,297,006,976.79 = 282,355,463.07/x - Step 3: Cross multiply
864,618,165.90x = 1,297,006,976.79 × 282,355,463.07 - Step 4: Simplify right side
864,618,165.90x = 366,217,005,536,561,152 - Step 5: Solve for x
x = 366,217,005,536,561,152/864,618,165.90 - Step 6: Final answer
x = 423,559,231.09
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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.